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import{_ as e}from"./plugin-vue_export-helper.21dcd24c.js";import{r as o,o as c,c as l,a as n,b as t,e as p,d as s}from"./app.85cbe1c4.js";const i={},u=p(`<p>\u5B57\u7B26\u6D41Reader\u548CWriter\u7684\u6545\u4E8B\u8981\u4ECE\u5B83\u4EEC\u7684\u7C7B\u5173\u7CFB\u56FE\u5F00\u59CB\uFF0C\u5565\u90FD\u4E0D\u8BF4\u4E86\uFF0C\u76F4\u63A5\u770B\u56FE</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/io/reader-writer-472cf80a-c6d1-4952-b672-15cd54d06eaf.png" alt=""></p><h2 id="\u5B57\u7B26\u6D41" tabindex="-1"><a class="header-anchor" href="#\u5B57\u7B26\u6D41" aria-hidden="true">#</a> \u5B57\u7B26\u6D41</h2><p>\u5B57\u7B26\u6D41\u672C\u8D28\u662F\u57FA\u4E8E\u5B57\u8282\u6D41\u8BFB\u53D6/\u5199\u5165\u7684\uFF0C\u53EA\u4E0D\u8FC7\u52A0\u4E86\u7F16\u7801\u548C\u89E3\u7801\u3002\u5982\u679C\u7528\u5B57\u8282\u6D41\u76F4\u63A5\u8BFB\u53D6/\u5199\u5165\u6570\u636E\u4F1A\u6709\u4E71\u7801\u95EE\u9898\uFF0C\u89C1\u4E0B\u4F8B\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">package</span> IO<span class="token punctuation">;</span>
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<span class="token keyword">import</span> <span class="token import"><span class="token namespace">java<span class="token punctuation">.</span>io<span class="token punctuation">.</span></span><span class="token class-name">FileInputStream</span></span><span class="token punctuation">;</span>
<span class="token keyword">import</span> <span class="token import"><span class="token namespace">java<span class="token punctuation">.</span>io<span class="token punctuation">.</span></span><span class="token class-name">FileNotFoundException</span></span><span class="token punctuation">;</span>
<span class="token keyword">import</span> <span class="token import"><span class="token namespace">java<span class="token punctuation">.</span>io<span class="token punctuation">.</span></span><span class="token class-name">FileOutputStream</span></span><span class="token punctuation">;</span>

<span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">CharaterStream</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">Exception</span> <span class="token punctuation">{</span>
        <span class="token comment">//FileInputStream\u4E3A\u64CD\u4F5C\u6587\u4EF6\u7684\u5B57\u7B26\u8F93\u5165\u6D41</span>
        <span class="token class-name">FileInputStream</span> inputStream <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileInputStream</span><span class="token punctuation">(</span><span class="token string">&quot;a.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span><span class="token comment">//\u5185\u5BB9\u4E3A\u201C\u6C89\u9ED8\u738B\u4E8C\u662F\u50BB X\u201D</span>

        <span class="token keyword">int</span> len<span class="token punctuation">;</span>
        <span class="token keyword">while</span> <span class="token punctuation">(</span><span class="token punctuation">(</span>len<span class="token operator">=</span>inputStream<span class="token punctuation">.</span><span class="token function">read</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token operator">!=</span><span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
           <span class="token class-name">System</span><span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">print</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token keyword">char</span><span class="token punctuation">)</span>len<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>

    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
\u8FD0\u884C\u7ED3\u679C\uFF1A   \xE6\xB2\x89\xE9\xBB\x98\xE7\x8E\x8B\xE4\xBA\x8C\xE6\x98\xAF\xE5\x82\xBB <span class="token class-name">X</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>\u5177\u4F53\u73B0\u72B6\u5206\u6790\uFF1A</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/io/reader-writer-0b68ef81-26d0-4a4e-9c1b-61928ce8646c.png" alt=""></p><blockquote><p>\u5B57\u8282\u6D41\u8BFB\u53D6\u4E2D\u6587\u5B57\u7B26\u65F6\uFF0C\u53EF\u80FD\u4E0D\u4F1A\u663E\u793A\u5B8C\u6574\u7684\u5B57\u7B26\uFF0C\u90A3\u662F\u56E0\u4E3A\u4E00\u4E2A\u4E2D\u6587\u5B57\u7B26\u5360\u7528\u591A\u4E2A\u5B57\u8282\u3002</p></blockquote><p>\u90A3\u5B57\u8282\u6D41\u5C31\u6CA1\u529E\u6CD5\u4E86\u5417\uFF1F\u4E0D\uFF0C\u5B57\u8282\u6D41\u4F9D\u65E7\u6709\u529E\u6CD5\uFF0C\u53EA\u662F\u9EBB\u70E6\u4E86\u70B9\uFF0C\u4EE3\u7801\u5982\u4E0B\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">CharaterStream</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">Exception</span> <span class="token punctuation">{</span>

        <span class="token class-name">FileInputStream</span> inputStream <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileInputStream</span><span class="token punctuation">(</span><span class="token string">&quot;abc.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">byte</span><span class="token punctuation">[</span><span class="token punctuation">]</span> bytes <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token keyword">byte</span><span class="token punctuation">[</span><span class="token number">1024</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
        <span class="token keyword">int</span> len<span class="token punctuation">;</span>
        <span class="token keyword">while</span> <span class="token punctuation">(</span><span class="token punctuation">(</span>len<span class="token operator">=</span>inputStream<span class="token punctuation">.</span><span class="token function">read</span><span class="token punctuation">(</span>bytes<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token operator">!=</span><span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
            <span class="token class-name">System</span><span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">print</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">String</span><span class="token punctuation">(</span>bytes<span class="token punctuation">,</span><span class="token number">0</span><span class="token punctuation">,</span>len<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
\u8FD0\u884C\u7ED3\u679C\uFF1A \u54E5\u6562\u6478\u5C4E
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>\u8FD9\u662F\u4E3A\u5565\u5462\uFF1F</p><p>\u56E0\u4E3A\u6211\u4EEC\u62FF String \u7C7B\u8FDB\u884C\u4E86\u89E3\u7801\uFF0C\u67E5\u770B<code>new String()</code>\u7684\u6E90\u7801\uFF0C<code>String</code>\u6784\u9020\u65B9\u6CD5\u6709\u89E3\u7801\u529F\u80FD\uFF0C\u5E76\u4E14\u9ED8\u8BA4\u7F16\u7801\u662F<code>utf-8</code>\uFF0C\u4EE3\u7801\u5982\u4E0B\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token class-name">String</span><span class="token punctuation">(</span><span class="token keyword">byte</span> bytes<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">,</span> <span class="token keyword">int</span> offset<span class="token punctuation">,</span> <span class="token keyword">int</span> length<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token function">checkBounds</span><span class="token punctuation">(</span>bytes<span class="token punctuation">,</span> offset<span class="token punctuation">,</span> length<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">this</span><span class="token punctuation">.</span>value <span class="token operator">=</span> <span class="token class-name">StringCoding</span><span class="token punctuation">.</span><span class="token function">decode</span><span class="token punctuation">(</span>bytes<span class="token punctuation">,</span> offset<span class="token punctuation">,</span> length<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token keyword">static</span> <span class="token keyword">char</span><span class="token punctuation">[</span><span class="token punctuation">]</span> <span class="token function">decode</span><span class="token punctuation">(</span><span class="token keyword">byte</span><span class="token punctuation">[</span><span class="token punctuation">]</span> ba<span class="token punctuation">,</span> <span class="token keyword">int</span> off<span class="token punctuation">,</span> <span class="token keyword">int</span> len<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token class-name">String</span> csn <span class="token operator">=</span> <span class="token class-name">Charset</span><span class="token punctuation">.</span><span class="token function">defaultCharset</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">name</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token keyword">try</span> <span class="token punctuation">{</span>
        <span class="token comment">// use charset name decode() variant which provides caching.</span>
        <span class="token keyword">return</span> <span class="token function">decode</span><span class="token punctuation">(</span>csn<span class="token punctuation">,</span> ba<span class="token punctuation">,</span> off<span class="token punctuation">,</span> len<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">UnsupportedEncodingException</span> x<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token function">warnUnsupportedCharset</span><span class="token punctuation">(</span>csn<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">try</span> <span class="token punctuation">{</span>
        <span class="token keyword">return</span> <span class="token function">decode</span><span class="token punctuation">(</span><span class="token string">&quot;ISO-8859-1&quot;</span><span class="token punctuation">,</span> ba<span class="token punctuation">,</span> off<span class="token punctuation">,</span> len<span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">UnsupportedEncodingException</span> x<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token comment">// If this code is hit during VM initialization, MessageUtils is</span>
        <span class="token comment">// the only way we will be able to get any kind of error message.</span>
        <span class="token class-name">MessageUtils</span><span class="token punctuation">.</span><span class="token function">err</span><span class="token punctuation">(</span><span class="token string">&quot;ISO-8859-1 charset not available: &quot;</span>
                         <span class="token operator">+</span> x<span class="token punctuation">.</span><span class="token function">toString</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token comment">// If we can not find ISO-8859-1 (a required encoding) then things</span>
        <span class="token comment">// are seriously wrong with the installation.</span>
        <span class="token class-name">System</span><span class="token punctuation">.</span><span class="token function">exit</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token keyword">return</span> <span class="token keyword">null</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
<span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token class-name">Charset</span> <span class="token function">defaultCharset</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">if</span> <span class="token punctuation">(</span>defaultCharset <span class="token operator">==</span> <span class="token keyword">null</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token keyword">synchronized</span> <span class="token punctuation">(</span><span class="token class-name">Charset</span><span class="token punctuation">.</span><span class="token keyword">class</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
            <span class="token class-name">String</span> csn <span class="token operator">=</span> <span class="token class-name">AccessController</span><span class="token punctuation">.</span><span class="token function">doPrivileged</span><span class="token punctuation">(</span>
                <span class="token keyword">new</span> <span class="token class-name">GetPropertyAction</span><span class="token punctuation">(</span><span class="token string">&quot;file.encoding&quot;</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token class-name">Charset</span> cs <span class="token operator">=</span> <span class="token function">lookup</span><span class="token punctuation">(</span>csn<span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token keyword">if</span> <span class="token punctuation">(</span>cs <span class="token operator">!=</span> <span class="token keyword">null</span><span class="token punctuation">)</span>
                defaultCharset <span class="token operator">=</span> cs<span class="token punctuation">;</span>
            <span class="token keyword">else</span>
                defaultCharset <span class="token operator">=</span> <span class="token function">forName</span><span class="token punctuation">(</span><span class="token string">&quot;UTF-8&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span>
    <span class="token keyword">return</span> defaultCharset<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>\u5C3D\u7BA1\u5B57\u8282\u6D41\u4E5F\u6709\u529E\u6CD5\u89E3\u51B3\u4E71\u7801\u95EE\u9898\uFF0C\u4F46\u8FD8\u662F\u6BD4\u8F83\u9EBB\u70E6\uFF0C\u4E8E\u662F Java \u5C31\u6709\u4E86\u5B57\u7B26\u6D41\uFF0C\u4EE5<code>\u5B57\u7B26\u4E3A\u5355\u4F4D</code>\u8BFB\u5199\u6570\u636E\uFF0C\u5B57\u7B26\u6D41<code>\u4E13\u95E8\u7528\u4E8E\u5904\u7406\u6587\u672C</code>\u6587\u4EF6\u3002</p><p>\u5982\u679C\u5904\u7406\u7EAF\u6587\u672C\u7684\u6570\u636E\u8BF7\u4F18\u5148\u8003\u8651\u5B57\u7B26\u6D41\uFF0C\u5176\u4ED6\u60C5\u51B5\u5C31\u7528\u5B57\u8282\u6D41\uFF08\u56FE\u7247\u3001\u89C6\u9891\u3001\u7B49\u7B49<code>\u53EA\u6587\u672C</code>\u4F8B\u5916\uFF09\u3002</p><blockquote><p>\u4ECE\u53E6\u4E00\u89D2\u5EA6\u6765\u8BF4\uFF1A<strong>\u5B57\u7B26\u6D41 = \u5B57\u8282\u6D41 + \u7F16\u7801\u8868</strong></p></blockquote><h2 id="_1\u3001\u5B57\u7B26\u8F93\u5165\u6D41-reader" tabindex="-1"><a class="header-anchor" href="#_1\u3001\u5B57\u7B26\u8F93\u5165\u6D41-reader" aria-hidden="true">#</a> 1\u3001\u5B57\u7B26\u8F93\u5165\u6D41\uFF08Reader\uFF09</h2><p><code>java.io.Reader</code>\u62BD\u8C61\u7C7B\u662F<strong>\u5B57\u7B26\u8F93\u5165\u6D41</strong>\u7C7B\u7684<strong>\u8D85\u7C7B</strong>\uFF08\u7236\u7C7B\uFF09\uFF0C\u53EF\u4EE5\u8BFB\u53D6\u5B57\u7B26\u4FE1\u606F\u5230\u5185\u5B58\u4E2D\u3002\u5B83\u5B9A\u4E49\u4E86\u5B57\u7B26\u8F93\u5165\u6D41\u7684\u4E00\u4E9B\u5171\u6027\u65B9\u6CD5\uFF1A</p><blockquote><p>1\u3001<code>public void close()</code> \uFF1A\u5173\u95ED\u6B64\u6D41\u5E76\u91CA\u653E\u4E0E\u6B64\u6D41\u76F8\u5173\u7684\u7CFB\u7EDF\u8D44\u6E90\u3002</p><p>2\u3001 <code>public int read()</code>\uFF1A \u4ECE\u8F93\u5165\u6D41\u8BFB\u53D6\u4E00\u4E2A\u5B57\u7B26\u3002</p><p>3\u3001 <code>public int read(char[] cbuf)</code>\uFF1A \u4ECE\u8F93\u5165\u6D41\u4E2D\u8BFB\u53D6\u4E00\u4E9B\u5B57\u7B26\uFF0C\u5E76\u5C06\u5B83\u4EEC\u5B58\u50A8\u5230\u5B57\u7B26\u6570\u7EC4 <code>cbuf</code>\u4E2D</p></blockquote><h3 id="filereader\u7C7B" tabindex="-1"><a class="header-anchor" href="#filereader\u7C7B" aria-hidden="true">#</a> FileReader\u7C7B</h3><p><code>java.io.FileReader</code> \u7C7B\u7528\u6765\u8BFB\u53D6\u5B57\u7B26\u6587\u4EF6\u3002\u6784\u9020\u65F6\u4F7F\u7528\u7CFB\u7EDF\u9ED8\u8BA4\u7684\u5B57\u7B26\u7F16\u7801\u548C\u9ED8\u8BA4\u5B57\u8282\u7F13\u51B2\u533A\u3002</p><h4 id="\u6784\u9020\u65B9\u6CD5" tabindex="-1"><a class="header-anchor" href="#\u6784\u9020\u65B9\u6CD5" aria-hidden="true">#</a> \u6784\u9020\u65B9\u6CD5</h4><blockquote><p>1\u3001<code>FileReader(File file)</code>\uFF1A \u521B\u5EFA\u4E00\u4E2A\u65B0\u7684 FileReader \uFF0C\u53C2\u6570\u4E3A<strong>File\u5BF9\u8C61</strong>\u3002</p><p>2\u3001 <code>FileReader(String fileName)</code>\uFF1A \u521B\u5EFA\u4E00\u4E2A\u65B0\u7684 FileReader\uFF0C\u53C2\u6570\u4E3A\u6587\u4EF6\u540D\u3002</p></blockquote><p>\u6784\u9020\u65B9\u6CD5\u7684\u4F7F\u7528\u5C31\u7B97\u4E0D\u5199\u5E94\u8BE5\u90FD\u5F88\u719F\u6089\u4E86\u5427\uFF0C\u4EE3\u7801\u5982\u4E0B\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">FileReaderConstructor</span> <span class="token keyword">throws</span> <span class="token class-name">IOException</span><span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token punctuation">{</span>
   	 	<span class="token comment">// \u4F7F\u7528File\u5BF9\u8C61\u521B\u5EFA\u6D41\u5BF9\u8C61</span>
        <span class="token class-name">File</span> file <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">File</span><span class="token punctuation">(</span><span class="token string">&quot;a.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token class-name">FileReader</span> fr <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileReader</span><span class="token punctuation">(</span>file<span class="token punctuation">)</span><span class="token punctuation">;</span>
      
        <span class="token comment">// \u4F7F\u7528\u6587\u4EF6\u540D\u79F0\u521B\u5EFA\u6D41\u5BF9\u8C61</span>
        <span class="token class-name">FileReader</span> fr <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileReader</span><span class="token punctuation">(</span><span class="token string">&quot;b.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="filereader\u8BFB\u53D6\u5B57\u7B26\u6570\u636E" tabindex="-1"><a class="header-anchor" href="#filereader\u8BFB\u53D6\u5B57\u7B26\u6570\u636E" aria-hidden="true">#</a> FileReader\u8BFB\u53D6\u5B57\u7B26\u6570\u636E</h4><ol><li><strong>\u8BFB\u53D6\u5B57\u7B26</strong>\uFF1A<code>read</code>\u65B9\u6CD5\uFF0C\u6BCF\u6B21\u53EF\u4EE5\u8BFB\u53D6\u4E00\u4E2A\u5B57\u7B26\u7684\u6570\u636E\uFF0C\u8FD4\u56DE\u8BFB\u53D6\u7684\u5B57\u7B26\uFF08\u8F6C\u4E3A int \u7C7B\u578B\uFF09\uFF0C\u8BFB\u53D6\u5230\u6587\u4EF6\u672B\u5C3E\uFF0C\u8FD4\u56DE<code>-1</code>\uFF0C\u5FAA\u73AF\u8BFB\u53D6\uFF0C\u4EE3\u7801\u4F7F\u7528\u6F14\u793A\uFF1A</li></ol><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">FRRead</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">IOException</span> <span class="token punctuation">{</span>
        <span class="token comment">// \u4F7F\u7528\u6587\u4EF6\u540D\u79F0\u521B\u5EFA\u6D41\u5BF9\u8C61</span>
        <span class="token class-name">FileReader</span> fr <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileReader</span><span class="token punctuation">(</span><span class="token string">&quot;abc.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token comment">// \u5B9A\u4E49\u53D8\u91CF\uFF0C\u4FDD\u5B58\u6570\u636E</span>
        <span class="token keyword">int</span> b<span class="token punctuation">;</span>
        <span class="token comment">// \u5FAA\u73AF\u8BFB\u53D6</span>
        <span class="token keyword">while</span> <span class="token punctuation">(</span><span class="token punctuation">(</span>b <span class="token operator">=</span> fr<span class="token punctuation">.</span><span class="token function">read</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token operator">!=</span><span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
            <span class="token class-name">System</span><span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token keyword">char</span><span class="token punctuation">)</span>b<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
        <span class="token comment">// \u5173\u95ED\u8D44\u6E90</span>
        fr<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>\u81F3\u4E8E\u8BFB\u53D6\u7684\u5199\u6CD5\u7C7B\u4F3C\u5B57\u8282\u6D41\u7684\u5199\u6CD5\uFF0C\u53EA\u662F\u8BFB\u53D6\u5355\u4F4D\u4E0D\u540C\u7F62\u4E86\u3002</p><h2 id="_2\u3001\u5B57\u7B26\u8F93\u51FA\u6D41-writer" tabindex="-1"><a class="header-anchor" href="#_2\u3001\u5B57\u7B26\u8F93\u51FA\u6D41-writer" aria-hidden="true">#</a> 2\u3001\u5B57\u7B26\u8F93\u51FA\u6D41\uFF08Writer\uFF09</h2><p><code>java.io.Writer</code> \u62BD\u8C61\u7C7B\u662F<strong>\u5B57\u7B26\u8F93\u51FA\u6D41</strong>\u7C7B\u7684<strong>\u8D85\u7C7B</strong>\uFF08\u7236\u7C7B\uFF09\uFF0C\u5C06\u6307\u5B9A\u7684\u5B57\u7B26\u4FE1\u606F\u5199\u5165\u5230\u76EE\u7684\u5730\uFF0C\u5B9A\u4E49\u4E86\u5B57\u7B26\u8F93\u51FA\u6D41\u7684\u4E00\u4E9B\u5171\u6027\u65B9\u6CD5\uFF1A</p><blockquote><p>1\u3001<code>void write(int c)</code> \u5199\u5165\u5355\u4E2A\u5B57\u7B26\u3002</p><p>2\u3001<code>void write(char[] cbuf)</code> \u5199\u5165\u5B57\u7B26\u6570\u7EC4\u3002</p><p>3\u3001 <code>abstract void write(char[] cbuf, int off, int len)</code> \u5199\u5165\u5B57\u7B26\u6570\u7EC4\u7684\u4E00\u90E8\u5206,off\u4E3A\u5F00\u59CB\u7D22\u5F15,len\u4E3A\u5B57\u7B26\u4E2A\u6570\u3002</p><p>4\u3001 <code>void write(String str)</code> \u5199\u5165\u5B57\u7B26\u4E32\u3002</p><p>5\u3001<code>void write(String str, int off, int len)</code> \u5199\u5165\u5B57\u7B26\u4E32\u7684\u67D0\u4E00\u90E8\u5206,off\u4E3A\u5B57\u7B26\u4E32\u7684\u5F00\u59CB\u7D22\u5F15,len\u4E3A\u5B57\u7B26\u4E2A\u6570\u3002</p><p>6\u3001<code>void flush()</code> \u5237\u65B0\u8BE5\u6D41\u7684\u7F13\u51B2\u3002</p><p>7\u3001<code>void close()</code> \u5173\u95ED\u6B64\u6D41\uFF0C\u4F46\u8981\u5148\u5237\u65B0\u5B83\u3002</p></blockquote><h3 id="filewriter\u7C7B" tabindex="-1"><a class="header-anchor" href="#filewriter\u7C7B" aria-hidden="true">#</a> FileWriter\u7C7B</h3><p><code>java.io.FileWriter</code> \u7C7B\u7528\u6765\u5C06\u5B57\u7B26\u5199\u5165\u5230\u6587\u4EF6\u7684\u7C7B\u3002\u6784\u9020\u65F6\u4F7F\u7528\u7CFB\u7EDF\u9ED8\u8BA4\u7684\u5B57\u7B26\u7F16\u7801\u548C\u9ED8\u8BA4\u5B57\u8282\u7F13\u51B2\u533A\u3002</p><h4 id="\u6784\u9020\u65B9\u6CD5-1" tabindex="-1"><a class="header-anchor" href="#\u6784\u9020\u65B9\u6CD5-1" aria-hidden="true">#</a> \u6784\u9020\u65B9\u6CD5</h4><p>1\u3001 <code>FileWriter(File file)</code>\uFF1A \u521B\u5EFA\u4E00\u4E2A\u65B0\u7684 FileWriter\uFF0C\u53C2\u6570\u4E3A\u8981\u8BFB\u53D6\u7684File\u5BF9\u8C61\u3002</p><p>2\u3001<code>FileWriter(String fileName)</code>\uFF1A \u521B\u5EFA\u4E00\u4E2A\u65B0\u7684 FileWriter\uFF0C\u53C2\u6570\u4E3A\u8981\u8BFB\u53D6\u7684\u6587\u4EF6\u7684\u540D\u79F0\u3002</p><p>\u4F9D\u65E7\u662F\u719F\u6089\u7684\u6784\u9020\u4E3E\u4F8B\uFF0C\u4EE3\u7801\u5982\u4E0B\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">FileWriterConstructor</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">IOException</span> <span class="token punctuation">{</span>
   	 	<span class="token comment">// \u7B2C\u4E00\u79CD\uFF1A\u4F7F\u7528File\u5BF9\u8C61\u521B\u5EFA\u6D41\u5BF9\u8C61</span>
        <span class="token class-name">File</span> file <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">File</span><span class="token punctuation">(</span><span class="token string">&quot;a.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token class-name">FileWriter</span> fw <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileWriter</span><span class="token punctuation">(</span>file<span class="token punctuation">)</span><span class="token punctuation">;</span>
      
        <span class="token comment">// \u7B2C\u4E8C\u79CD\uFF1A\u4F7F\u7528\u6587\u4EF6\u540D\u79F0\u521B\u5EFA\u6D41\u5BF9\u8C61</span>
        <span class="token class-name">FileWriter</span> fw <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileWriter</span><span class="token punctuation">(</span><span class="token string">&quot;b.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="filewriter\u5199\u5165\u6570\u636E" tabindex="-1"><a class="header-anchor" href="#filewriter\u5199\u5165\u6570\u636E" aria-hidden="true">#</a> FileWriter\u5199\u5165\u6570\u636E</h4><p><strong>\u5199\u5165\u5B57\u7B26</strong>\uFF1A<code>write(int b)</code> \u65B9\u6CD5\uFF0C\u6BCF\u6B21\u53EF\u4EE5\u5199\u51FA\u4E00\u4E2A\u5B57\u7B26\u6570\u636E\uFF0C\u4EE3\u7801\u4F7F\u7528\u6F14\u793A\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">FWWrite</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">IOException</span> <span class="token punctuation">{</span>
        <span class="token comment">// \u4F7F\u7528\u6587\u4EF6\u540D\u79F0\u521B\u5EFA\u6D41\u5BF9\u8C61</span>
        <span class="token class-name">FileWriter</span> fw <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileWriter</span><span class="token punctuation">(</span><span class="token string">&quot;fw.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>     
      	<span class="token comment">// \u5199\u51FA\u6570\u636E</span>
      	fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token number">97</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// \u5199\u51FA\u7B2C1\u4E2A\u5B57\u7B26</span>
      	fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token char">&#39;b&#39;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// \u5199\u51FA\u7B2C2\u4E2A\u5B57\u7B26</span>
      	fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token char">&#39;C&#39;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// \u5199\u51FA\u7B2C3\u4E2A\u5B57\u7B26</span>
      	
        <span class="token comment">//\u5173\u95ED\u8D44\u6E90\u65F6,\u4E0EFileOutputStream\u4E0D\u540C\u3002 \u5982\u679C\u4E0D\u5173\u95ED,\u6570\u636E\u53EA\u662F\u4FDD\u5B58\u5230\u7F13\u51B2\u533A\uFF0C\u5E76\u672A\u4FDD\u5B58\u5230\u6587\u4EF6\u3002</span>
        <span class="token comment">// fw.close();</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
\u8F93\u51FA\u7ED3\u679C\uFF1A
abC
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><blockquote><p>\u3010\u6CE8\u610F\u3011<strong>\u5173\u95ED\u8D44\u6E90\u65F6,\u4E0EFileOutputStream\u4E0D\u540C\u3002 \u5982\u679C\u4E0D\u5173\u95ED,\u6570\u636E\u53EA\u662F\u4FDD\u5B58\u5230\u7F13\u51B2\u533A\uFF0C\u5E76\u672A\u4FDD\u5B58\u5230\u6587\u4EF6\u3002</strong></p></blockquote><h4 id="\u5173\u95EDclose\u548C\u5237\u65B0flush" tabindex="-1"><a class="header-anchor" href="#\u5173\u95EDclose\u548C\u5237\u65B0flush" aria-hidden="true">#</a> \u5173\u95EDclose\u548C\u5237\u65B0flush</h4><p>\u56E0\u4E3A\u5185\u7F6E\u7F13\u51B2\u533A\u7684\u539F\u56E0\uFF0C\u5982\u679C\u4E0D\u5173\u95ED\u8F93\u51FA\u6D41\uFF0C\u65E0\u6CD5\u628A\u5B57\u7B26\u5199\u5165\u5230\u6587\u4EF6\u4E2D\u3002\u4F46\u662F\u5173\u95ED\u4E86\u6D41\u5BF9\u8C61\uFF0C\u5C31\u65E0\u6CD5\u7EE7\u7EED\u5199\u6570\u636E\u4E86\u3002\u5982\u679C\u6211\u4EEC\u65E2\u60F3\u5199\u5165\u6570\u636E\uFF0C\u53C8\u60F3\u7EE7\u7EED\u4F7F\u7528\u6D41\uFF0C\u5C31\u9700\u8981<code>flush</code> \u65B9\u6CD5\u4E86\u3002</p><p><code>flush</code> \uFF1A\u5237\u65B0\u7F13\u51B2\u533A\uFF0C\u6D41\u5BF9\u8C61\u53EF\u4EE5\u7EE7\u7EED\u4F7F\u7528\u3002</p><p><code>close</code> \uFF1A\u5148\u5237\u65B0\u7F13\u51B2\u533A\uFF0C\u7136\u540E\u901A\u77E5\u7CFB\u7EDF\u91CA\u653E\u8D44\u6E90\u3002\u6D41\u5BF9\u8C61\u4E0D\u53EF\u4EE5\u518D\u88AB\u4F7F\u7528\u4E86\u3002</p><p>flush\u8FD8\u662F\u6BD4\u8F83\u6709\u8DA3\u7684\uFF0C\u5C0F\u4F19\u4F34\u4EEC\u4E0D\u81EA\u5DF1\u8FD0\u884C\u4E00\u4E0B\u8FD8\u771F\u4E0D\u597D\u4F53\u4F1A\uFF0C\u6765\u6BB5\u4EE3\u7801\u4F53\u4F1A\u4F53\u4F1A\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">FlushDemo</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">Exception</span> <span class="token punctuation">{</span>
        <span class="token comment">//\u6E90   \u4E5F\u5C31\u662F\u8F93\u5165\u6D41\u3010\u8BFB\u53D6\u6D41\u3011 \u8BFB\u53D6a.txt\u6587\u4EF6</span>
        <span class="token class-name">FileReader</span> fr<span class="token operator">=</span><span class="token keyword">new</span> <span class="token class-name">FileReader</span><span class="token punctuation">(</span><span class="token string">&quot;abc.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>  <span class="token comment">//\u5FC5\u987B\u8981\u5B58\u5728a.txt\u6587\u4EF6\uFF0C\u5426\u5219\u62A5FileNotFoundException\u5F02\u5E38</span>
        <span class="token comment">//\u76EE\u7684\u5730  \u4E5F\u5C31\u662F\u8F93\u51FA\u6D41</span>
        <span class="token class-name">FileWriter</span> fw<span class="token operator">=</span><span class="token keyword">new</span> <span class="token class-name">FileWriter</span><span class="token punctuation">(</span><span class="token string">&quot;b.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>  <span class="token comment">//\u7CFB\u7EDF\u4F1A\u81EA\u52A8\u521B\u5EFAb.txt\uFF0C\u56E0\u4E3A\u5B83\u662F\u8F93\u51FA\u6D41\uFF01</span>
        <span class="token keyword">int</span> len<span class="token punctuation">;</span>
        <span class="token keyword">while</span><span class="token punctuation">(</span><span class="token punctuation">(</span>len<span class="token operator">=</span>fr<span class="token punctuation">.</span><span class="token function">read</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token operator">!=</span><span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
           fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>len<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
   \u6CE8\u610F\u8FD9\u91CC\u662F\u6CA1\u6709\u4F7F\u7528close\u5173\u95ED\u6D41\uFF0C\u5F00\u53D1\u4E2D\u4E0D\u80FD\u8FD9\u6837\u505A\uFF0C\u4F46\u662F\u4E3A\u4E86\u66F4\u597D\u7684\u4F53\u4F1Aflush\u7684\u4F5C\u7528
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>\u8FD0\u884C\u6548\u679C\u662F\u600E\u4E48\u6837\u7684\u5462\uFF1F\u7B54\u6848\u662Fb.txt\u6587\u4EF6\u4E2D\u4F9D\u65E7\u662F\u7A7A\u7684\uFF0C\u5E76\u6CA1\u6709\u4EFB\u4F55\u4E1C\u897F\uFF0C\u4E3A\u5565\u5462\uFF1F</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/io/reader-writer-3b4fd024-856f-45ee-8183-1a1ee808e5ce.png" alt=""></p><p>\u3010\u6CE8\u610F\u3011<strong>\u5173\u95ED\u8D44\u6E90\u65F6,FileWriter\u4E0EFileOutputStream\u4E0D\u540C\uFF0C\u5982\u679C\u4E0D\u5173\u95ED,\u6570\u636E\u53EA\u662F\u4FDD\u5B58\u5230\u7F13\u51B2\u533A\uFF0C\u5E76\u672A\u4FDD\u5B58\u5230\u6587\u4EF6\u3002</strong></p><p>\u8FD9\u4E2A\u65F6\u5019\u53CD\u5E94\u8FC7\u6765\u4E86\u5427\uFF1F\u53EF\u89C1\u5B9E\u8DF5\u7684\u91CD\u8981\u6027\uFF0C<strong>\u7F16\u7A0B\u5C31\u662F\u8FD9\u6837\uFF0C\u4E0D\u53BB\u6572\uFF0C\u6C38\u8FDC\u5B66\u4E0D\u4F1A</strong>\uFF01\uFF01\uFF01\u6240\u4EE5\u4E00\u5B9A\u8981\u53BB\u6572\uFF0C\u591A\u6572\u554A\uFF01\uFF01\uFF01</p><p>\u6240\u4EE5\uFF0C\u6211\u4EEC\u5728\u4EE5\u4E0A\u7684\u4EE3\u7801\u4E2D\u518D\u6DFB\u52A0\u4E0B\u9762\u4E09\u53E5\u4EE3\u7801\uFF0C\u5C31\u5B8C\u7F8E\u4E86\uFF0Cb.txt\u6587\u4EF6\u5C31\u80FD\u590D\u5236\u5230\u6E90\u6587\u4EF6\u7684\u6570\u636E\u4E86\uFF01</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code>fr<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
fw<span class="token punctuation">.</span><span class="token function">flush</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
fw<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><blockquote><p><code>flush()</code>\u8FD9\u4E2A\u65B9\u6CD5\u662F\u6E05\u7A7A\u7F13\u5B58\u7684\u610F\u601D\uFF0C\u7528\u4E8E\u6E05\u7A7A\u7F13\u51B2\u533A\u7684\u6570\u636E\u6D41\uFF0C\u8FDB\u884C\u6D41\u7684\u64CD\u4F5C\u65F6\uFF0C\u6570\u636E\u5148\u88AB\u8BFB\u5230\u5185\u5B58\u4E2D\uFF0C\u7136\u540E\u518D\u628A\u6570\u636E\u5199\u5230\u6587\u4EF6\u4E2D\u3002</p></blockquote><p>\u90A3\u4E48\u5F53\u4F60\u6570\u636E\u8BFB\u5B8C\u65F6\uFF0C\u5982\u679C\u8FD9\u65F6\u8C03\u7528<code>close()</code>\u65B9\u6CD5\u5173\u95ED\u4E86\u8BFB\u5199\u6D41\uFF0C\u5C31\u53EF\u80FD\u9020\u6210\u6570\u636E\u4E22\u5931\uFF0C\u4E3A\u4EC0\u4E48\u5462\uFF1F</p><p>\u56E0\u4E3A\uFF0C\u8BFB\u5165\u6570\u636E\u5B8C\u6210\u65F6\u4E0D\u4EE3\u8868\u5199\u5165\u6570\u636E\u5B8C\u6210\uFF0C\u4E00\u90E8\u5206\u6570\u636E\u53EF\u80FD\u4F1A\u7559\u5728\u7F13\u5B58\u533A\u4E2D\uFF0C\u8FD9\u4E2A\u65F6\u5019<code>flush()</code>\u65B9\u6CD5\u5C31\u683C\u5916\u91CD\u8981\u4E86\u3002</p><p>\u597D\u4E86\uFF0C\u63A5\u4E0B\u6765close\u3002\u4F7F\u7528\u4EE3\u7801\u5982\u4E0B\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">FWWrite</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">IOException</span> <span class="token punctuation">{</span>
        <span class="token comment">// \u4F7F\u7528\u6587\u4EF6\u540D\u79F0\u521B\u5EFA\u6D41\u5BF9\u8C61</span>
        <span class="token class-name">FileWriter</span> fw <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileWriter</span><span class="token punctuation">(</span><span class="token string">&quot;fw.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token comment">// \u5199\u51FA\u6570\u636E\uFF0C\u901A\u8FC7flush</span>
        fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token char">&#39;\u5237&#39;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// \u5199\u51FA\u7B2C1\u4E2A\u5B57\u7B26</span>
        fw<span class="token punctuation">.</span><span class="token function">flush</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token char">&#39;\u65B0&#39;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// \u7EE7\u7EED\u5199\u51FA\u7B2C2\u4E2A\u5B57\u7B26\uFF0C\u5199\u51FA\u6210\u529F</span>
        fw<span class="token punctuation">.</span><span class="token function">flush</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
      
      	<span class="token comment">// \u5199\u51FA\u6570\u636E\uFF0C\u7136\u540Eclose</span>
        fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token char">&#39;\u5173&#39;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// \u5199\u51FA\u7B2C1\u4E2A\u5B57\u7B26</span>
        fw<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token char">&#39;\u95ED&#39;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// \u7EE7\u7EED\u5199\u51FA\u7B2C2\u4E2A\u5B57\u7B26,\u3010\u62A5\u9519\u3011java.io.IOException: Stream closed</span>
        fw<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><blockquote><p>\u5373\u4FBF\u662Fflush\u65B9\u6CD5\u5199\u51FA\u4E86\u6570\u636E\uFF0C\u64CD\u4F5C\u7684\u6700\u540E\u8FD8\u662F\u8981\u8C03\u7528close\u65B9\u6CD5\uFF0C\u91CA\u653E\u7CFB\u7EDF\u8D44\u6E90\u3002</p></blockquote><h4 id="filewriter\u7684\u7EED\u5199\u548C\u6362\u884C" tabindex="-1"><a class="header-anchor" href="#filewriter\u7684\u7EED\u5199\u548C\u6362\u884C" aria-hidden="true">#</a> FileWriter\u7684\u7EED\u5199\u548C\u6362\u884C</h4>`,62),k=n("strong",null,"\u7EED\u5199\u548C\u6362\u884C",-1),r=s("\uFF1A\u64CD\u4F5C\u7C7B\u4F3C\u4E8E"),d={href:"https://tobebetterjavaer.com/io/stream.html",target:"_blank",rel:"noopener noreferrer"},v=s("FileOutputStream\u64CD\u4F5C"),m=s("\uFF0C\u76F4\u63A5\u4E0A\u4EE3\u7801\uFF1A"),b=p(`<div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">FWWrite</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">IOException</span> <span class="token punctuation">{</span>
        <span class="token comment">// \u4F7F\u7528\u6587\u4EF6\u540D\u79F0\u521B\u5EFA\u6D41\u5BF9\u8C61\uFF0C\u53EF\u4EE5\u7EED\u5199\u6570\u636E</span>
        <span class="token class-name">FileWriter</span> fw <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileWriter</span><span class="token punctuation">(</span><span class="token string">&quot;fw.txt&quot;</span><span class="token punctuation">,</span><span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">;</span>     
      	<span class="token comment">// \u5199\u51FA\u5B57\u7B26\u4E32</span>
        fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">&quot;\u6C89\u9ED8\u738B\u4E8C&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
      	<span class="token comment">// \u5199\u51FA\u6362\u884C</span>
      	fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">&quot;\\r\\n&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
      	<span class="token comment">// \u5199\u51FA\u5B57\u7B26\u4E32</span>
  		fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">&quot;\u662F\u50BB X&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
      	<span class="token comment">// \u5173\u95ED\u8D44\u6E90</span>
        fw<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
\u8F93\u51FA\u7ED3\u679C<span class="token operator">:</span>
\u6C89\u9ED8\u738B\u4E8C
\u662F\u50BB <span class="token class-name">X</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="filereader\u548Cfilewriter\u7C7B\u5B8C\u6210\u6587\u672C\u6587\u4EF6\u590D\u5236" tabindex="-1"><a class="header-anchor" href="#filereader\u548Cfilewriter\u7C7B\u5B8C\u6210\u6587\u672C\u6587\u4EF6\u590D\u5236" aria-hidden="true">#</a> FileReader\u548CFileWriter\u7C7B\u5B8C\u6210\u6587\u672C\u6587\u4EF6\u590D\u5236</h4><p>\u76F4\u63A5\u4E0A\u4EE3\u7801\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">import</span> <span class="token import"><span class="token namespace">java<span class="token punctuation">.</span>io<span class="token punctuation">.</span></span><span class="token class-name">FileReader</span></span><span class="token punctuation">;</span>
<span class="token keyword">import</span> <span class="token import"><span class="token namespace">java<span class="token punctuation">.</span>io<span class="token punctuation">.</span></span><span class="token class-name">FileWriter</span></span><span class="token punctuation">;</span>
<span class="token keyword">import</span> <span class="token import"><span class="token namespace">java<span class="token punctuation">.</span>io<span class="token punctuation">.</span></span><span class="token class-name">IOException</span></span><span class="token punctuation">;</span>

<span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">CopyFile</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">IOException</span> <span class="token punctuation">{</span>
        <span class="token comment">//\u521B\u5EFA\u8F93\u5165\u6D41\u5BF9\u8C61</span>
        <span class="token class-name">FileReader</span> fr<span class="token operator">=</span><span class="token keyword">new</span> <span class="token class-name">FileReader</span><span class="token punctuation">(</span><span class="token string">&quot;F:\\\\\u65B0\u5EFA\u6587\u4EF6\u5939\\\\aa.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span><span class="token comment">//\u6587\u4EF6\u4E0D\u5B58\u5728\u4F1A\u629B\u51FAjava.io.FileNotFoundException</span>
        <span class="token comment">//\u521B\u5EFA\u8F93\u51FA\u6D41\u5BF9\u8C61</span>
        <span class="token class-name">FileWriter</span> fw<span class="token operator">=</span><span class="token keyword">new</span> <span class="token class-name">FileWriter</span><span class="token punctuation">(</span><span class="token string">&quot;C:\\\\copyaa.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token comment">/*\u521B\u5EFA\u8F93\u51FA\u6D41\u505A\u7684\u5DE5\u4F5C\uFF1A
         *      1\u3001\u8C03\u7528\u7CFB\u7EDF\u8D44\u6E90\u521B\u5EFA\u4E86\u4E00\u4E2A\u6587\u4EF6
         *      2\u3001\u521B\u5EFA\u8F93\u51FA\u6D41\u5BF9\u8C61
         *      3\u3001\u628A\u8F93\u51FA\u6D41\u5BF9\u8C61\u6307\u5411\u6587\u4EF6        
         * */</span>
        <span class="token comment">//\u6587\u672C\u6587\u4EF6\u590D\u5236\uFF0C\u4E00\u6B21\u8BFB\u4E00\u4E2A\u5B57\u7B26</span>
        <span class="token function">copyMethod1</span><span class="token punctuation">(</span>fr<span class="token punctuation">,</span> fw<span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token comment">//\u6587\u672C\u6587\u4EF6\u590D\u5236\uFF0C\u4E00\u6B21\u8BFB\u4E00\u4E2A\u5B57\u7B26\u6570\u7EC4</span>
        <span class="token function">copyMethod2</span><span class="token punctuation">(</span>fr<span class="token punctuation">,</span> fw<span class="token punctuation">)</span><span class="token punctuation">;</span>
        
        fr<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        fw<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">copyMethod1</span><span class="token punctuation">(</span><span class="token class-name">FileReader</span> fr<span class="token punctuation">,</span> <span class="token class-name">FileWriter</span> fw<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">IOException</span> <span class="token punctuation">{</span>
        <span class="token keyword">int</span> ch<span class="token punctuation">;</span>
        <span class="token keyword">while</span><span class="token punctuation">(</span><span class="token punctuation">(</span>ch<span class="token operator">=</span>fr<span class="token punctuation">.</span><span class="token function">read</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token operator">!=</span><span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span> <span class="token punctuation">{</span><span class="token comment">//\u8BFB\u6570\u636E</span>
            fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>ch<span class="token punctuation">)</span><span class="token punctuation">;</span><span class="token comment">//\u5199\u6570\u636E</span>
        <span class="token punctuation">}</span>
        fw<span class="token punctuation">.</span><span class="token function">flush</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>

    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">copyMethod2</span><span class="token punctuation">(</span><span class="token class-name">FileReader</span> fr<span class="token punctuation">,</span> <span class="token class-name">FileWriter</span> fw<span class="token punctuation">)</span> <span class="token keyword">throws</span> <span class="token class-name">IOException</span> <span class="token punctuation">{</span>
        <span class="token keyword">char</span> chs<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token operator">=</span><span class="token keyword">new</span> <span class="token keyword">char</span><span class="token punctuation">[</span><span class="token number">1024</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
        <span class="token keyword">int</span> len<span class="token operator">=</span><span class="token number">0</span><span class="token punctuation">;</span>
        <span class="token keyword">while</span><span class="token punctuation">(</span><span class="token punctuation">(</span>len<span class="token operator">=</span>fr<span class="token punctuation">.</span><span class="token function">read</span><span class="token punctuation">(</span>chs<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token operator">!=</span><span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span> <span class="token punctuation">{</span><span class="token comment">//\u8BFB\u6570\u636E</span>
            fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>chs<span class="token punctuation">,</span><span class="token number">0</span><span class="token punctuation">,</span>len<span class="token punctuation">)</span><span class="token punctuation">;</span><span class="token comment">//\u5199\u6570\u636E</span>
        <span class="token punctuation">}</span>
        fw<span class="token punctuation">.</span><span class="token function">flush</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/io/reader-writer-0f158401-ee7b-4384-a566-be10bd264fbd.png" alt=""></p><blockquote><p>\u6700\u540E\u518D\u6B21\u5F3A\u8C03\uFF1A</p><p>\u5B57\u7B26\u6D41\uFF0C\u53EA\u80FD\u64CD\u4F5C\u6587\u672C\u6587\u4EF6\uFF0C\u4E0D\u80FD\u64CD\u4F5C\u56FE\u7247\uFF0C\u89C6\u9891\u7B49\u975E\u6587\u672C\u6587\u4EF6\u3002\u5F53\u6211\u4EEC\u5355\u7EAF\u8BFB\u6216\u8005\u5199\u6587\u672C\u6587\u4EF6\u65F6 \u4F7F\u7528\u5B57\u7B26\u6D41 \u5176\u4ED6\u60C5\u51B5\u4F7F\u7528\u5B57\u8282\u6D41</p></blockquote><h2 id="io\u5F02\u5E38\u7684\u5904\u7406" tabindex="-1"><a class="header-anchor" href="#io\u5F02\u5E38\u7684\u5904\u7406" aria-hidden="true">#</a> IO\u5F02\u5E38\u7684\u5904\u7406</h2><p>\u6211\u4EEC\u5728\u5B66\u4E60\u7684\u8FC7\u7A0B\u4E2D\u53EF\u80FD\u4E60\u60EF\u628A\u5F02\u5E38\u629B\u51FA\uFF0C\u800C\u5B9E\u9645\u5F00\u53D1\u4E2D\u5E76\u4E0D\u80FD\u8FD9\u6837\u5904\u7406\uFF0C\u5EFA\u8BAE\u4F7F\u7528<code>try...catch...finally</code> \u4EE3\u7801\u5757\uFF0C\u5904\u7406\u5F02\u5E38\u90E8\u5206\uFF0C\u683C\u5F0F\u4EE3\u7801\u5982\u4E0B\uFF1A</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">HandleException1</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">void</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> args<span class="token punctuation">)</span> <span class="token punctuation">{</span>
      	<span class="token comment">// \u58F0\u660E\u53D8\u91CF</span>
        <span class="token class-name">FileWriter</span> fw <span class="token operator">=</span> <span class="token keyword">null</span><span class="token punctuation">;</span>
        <span class="token keyword">try</span> <span class="token punctuation">{</span>
            <span class="token comment">//\u521B\u5EFA\u6D41\u5BF9\u8C61</span>
            fw <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">FileWriter</span><span class="token punctuation">(</span><span class="token string">&quot;fw.txt&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token comment">// \u5199\u51FA\u6570\u636E</span>
            fw<span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span><span class="token string">&quot;\u54E5\u6562\u6478si&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">//\u54E5\u6562\u6478si</span>
        <span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">IOException</span> e<span class="token punctuation">)</span> <span class="token punctuation">{</span>
            e<span class="token punctuation">.</span><span class="token function">printStackTrace</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span> <span class="token keyword">finally</span> <span class="token punctuation">{</span>
            <span class="token keyword">try</span> <span class="token punctuation">{</span>
                <span class="token keyword">if</span> <span class="token punctuation">(</span>fw <span class="token operator">!=</span> <span class="token keyword">null</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
                    fw<span class="token punctuation">.</span><span class="token function">close</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
                <span class="token punctuation">}</span>
            <span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">IOException</span> e<span class="token punctuation">)</span> <span class="token punctuation">{</span>
                e<span class="token punctuation">.</span><span class="token function">printStackTrace</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            <span class="token punctuation">}</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>\u597D\u4E86\uFF0C\u5230\u8FD9\u91CC\uFF0C\u5B57\u7B26\u6D41Reader\u548CWriter\u7684\u6545\u4E8B\u7684\u5230\u8FD9\u91CC\u4E86\uFF01</p>`,10),w=s("\u53C2\u8003\u94FE\u63A5\uFF1A"),f={href:"https://www.cnblogs.com/yichunguo/p/11775270.html",target:"_blank",rel:"noopener noreferrer"},h=s("https://www.cnblogs.com/yichunguo/p/11775270.html"),y=s("\uFF0C\u6574\u7406\uFF1A\u6C89\u9ED8\u738B\u4E8C"),g=n("hr",null,null,-1),F=s("\u6700\u8FD1\u6574\u7406\u4E86\u4E00\u4EFD\u725B\u903C\u7684\u5B66\u4E60\u8D44\u6599\uFF0C\u5305\u62EC\u4F46\u4E0D\u9650\u4E8EJava\u57FA\u7840\u90E8\u5206\uFF08JVM\u3001Java\u96C6\u5408\u6846\u67B6\u3001\u591A\u7EBF\u7A0B\uFF09\uFF0C\u8FD8\u56CA\u62EC\u4E86 "),x=n("strong",null,"\u6570\u636E\u5E93\u3001\u8BA1\u7B97\u673A\u7F51\u7EDC\u3001\u7B97\u6CD5\u4E0E\u6570\u636E\u7ED3\u6784\u3001\u8BBE\u8BA1\u6A21\u5F0F\u3001\u6846\u67B6\u7C7BSpring\u3001Netty\u3001\u5FAE\u670D\u52A1\uFF08Dubbo\uFF0C\u6D88\u606F\u961F\u5217\uFF09 \u7F51\u5173",-1),q=s(" \u7B49\u7B49\u7B49\u7B49\u2026\u2026\u8BE6\u60C5\u6233\uFF1A"),j={href:"https://tobebetterjavaer.com/pdf/programmer-111.html",target:"_blank",rel:"noopener noreferrer"},_=s("\u53EF\u4EE5\u8BF4\u662F2022\u5E74\u5168\u7F51\u6700\u5168\u7684\u5B66\u4E60\u548C\u627E\u5DE5\u4F5C\u7684PDF\u8D44\u6E90\u4E86"),S=n("p",null,[s("\u5173\u6CE8\u4E8C\u54E5\u7684\u539F\u521B\u516C\u4F17\u53F7 "),n("strong",null,"\u6C89\u9ED8\u738B\u4E8C"),s("\uFF0C\u56DE\u590D"),n("strong",null,"111"),s(" \u5373\u53EF\u514D\u8D39\u9886\u53D6\u3002")],-1),W=n("p",null,[n("img",{src:"http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/xingbiaogongzhonghao.png",alt:""})],-1);function I(R,E){const a=o("ExternalLinkIcon");return c(),l("div",null,[u,n("p",null,[k,r,n("a",d,[v,t(a)]),m]),b,n("blockquote",null,[n("p",null,[w,n("a",f,[h,t(a)]),y])]),g,n("p",null,[F,x,q,n("a",j,[_,t(a)])]),S,W])}var N=e(i,[["render",I],["__file","reader-writer.html.vue"]]);export{N as default};