fileReadWrite.cpp

@@ -3,109 +3,100 @@
 //
 
 #include "fileReadWrite.h"
-#include "io.h"
+#include "iostream"
+#include "string"
 
-//空构造方法
-fileReadWrite::fileReadWrite() {
-    this->filePath = "";
-    cout << "路径为空,请设置文件路径" << endl;
-}
-
-fileReadWrite::fileReadWrite(string path) : filePath(path) {
-    if (path.length() == 0) cout << "文件路径为空！";
-}
-
-fileReadWrite::fileReadWrite(string path, ofstream *writeStream) :
-        filePath(path), writeStream(writeStream) {
-    if (path.length() == 0) cout << "文件路径为空！";
+fileReadWrite::fileReadWrite(string path, ofstream *w) :
+        filePath(path), writeStream(w) {
+    if (path == "") cout << "文件路径为空！";
 
 
 }
 
-fileReadWrite::fileReadWrite(string path, ofstream *writeStream, ifstream *readStream) :
-        filePath(path), writeStream(writeStream), readStream(readStream) {
-    if (path.length() == 0) cout << "文件路径为空！";
+fileReadWrite::fileReadWrite(string path, ifstream *r) :
+        filePath(path), readStream(r) {
+    if (path == "") cout << "文件路径为空！";
 }
 
 void fileReadWrite::openFile(fileReadWrite::model model, bool display) {
-    char  c[100];  //保存控制台输入，最大字数不超过100个
+    char c[100];  //保存控制台输入，最大字数不超过100个
 
     //路径为空，给出提示结束函数运行
-    if (filePath.empty()) {
+    if (filePath == "") {
         cout << "文件路径为空！" << endl;
         return;
     }
 
-    if (writeStream == nullptr){
-        cout << "写入对象为空，没有被初始化！" << endl;
-        return;
-    }
-
-    if (readStream == nullptr){
-        cout << "读取对象为空，没有被初始化！" << endl;
-        return;
-    }
-
-    if (ReadWriteStream == nullptr){
-        cout << "读写对象为空，没有被初始化！" << endl;
-        return;
-    }
 
     switch (model) {
         //如果是写文件
         case write:
-            writeStream->open(filePath, ios::app); //所有文件读追加到末尾
+            if (writeStream == nullptr) {
+                cout << "写入对象为空，没有被初始化！" << endl;
+                return;
+            }
+
+            writeStream->open(filePath); //所有文件读追加到末尾
             //从控制台接收数据，敲击回车键结束输入
-            cout<<"请输入要保存到文中的名字，不超过100个字符，按下回车键结束输入！"<<endl;
-            cin.getline(c,100); //接收输入
+            cout << "请输入要保存到文中的名字，不超过100个字符，按下回车键结束输入！" << endl;
+            cin.getline(c, 100); //接收输入
             //把输入的字符写入到文件中
-            writeStream->write(c,100);
+            writeStream->write(c, 100);
 
             //判断是显示到屏幕还是写入到文件
             if (display) {
-                cout<<"你输入的数据为："<<endl;
-                cout<<c<<endl;
+                cout << "你输入的数据为：" << endl;
+                cout << c << endl;
             }
             break;
 
             //如果是读文件
         case read:
-            writeStream->open(filePath, ios::in); //读模式打开
+            if (readStream == nullptr) {
+                cout << "读取对象为空，没有被初始化！" << endl;
+                return;
+            }
+
+            readStream->open(filePath); //读模式打开
             //把输入的字符写入到文件中
-            readStream->read(c,100); //最大读取100个字符，并存储在char数组中
-            cout<<"读取的文件完毕！："<<endl;
+            readStream->read(c, 100); //最大读取100个字符，并存储在char数组中
+            cout << "读取的文件完毕！：" << endl;
             //判断是显示到屏幕还是写入到文件
             if (display) {
-                cout<<"读取的文件内容如下："<<endl;
-                cout<<c<<endl;
+                cout << "读取的文件内容如下：" << endl;
+                cout << c << endl;
             }
             break;
 
             //如果是读写文件
         case readWrite:
+            if (ReadWriteStream == nullptr) {
+                cout << "读写对象为空，没有被初始化！" << endl;
+                return;
+            }
+
             int flag;
-            cout<<"请输入文件的操作模式，输入0代表写，输入1代表读"<<endl;
-            cin>>flag;
+            cout << "请输入文件的操作模式，输入0代表写，输入1代表读" << endl;
+            cin >> flag;
 
-            if (flag==0){
+            if (flag == 0) {
                 //写入文件
-                ReadWriteStream->open(filePath,ios::app);
+                ReadWriteStream ->open(filePath,ios::app);
                 //从控制台接收数据，敲击回车键结束输入
-                cout<<"请输入要保存到文中的名字，不超过100个字符，按下回车键结束输入！"<<endl;
-                cin.getline(c,100); //接收输入
+                cout << "请输入要保存到文中的名字，不超过100个字符，按下回车键结束输入！" << endl;
+                cin.getline(c, 100); //接收输入
                 //把输入的字符写入到文件中
-                ReadWriteStream->write(c,100);
-                cout<<"写入文件完成，你写入的内容是："<<c<<endl;
+                ReadWriteStream->write(c, 100);
+                cout << "写入文件完成，你写入的内容是：" << c << endl;
 
-            }
-            else if (flag==1){
+            } else if (flag == 1) {
                 //开始读取
-                ReadWriteStream->open(filePath, ios::in); //读模式打开
+                ReadWriteStream->open(filePath,ios::in); //读模式打开
                 //把输入的字符写入到文件中
-                ReadWriteStream->read(c,100); //最大读取100个字符，并存储在char数组中
-                cout<<"读取的文件完毕，内容为："<<c<<endl;
-            } else{
-                cout<<"你输入有误，程序结束！"<<endl;
+                ReadWriteStream->read(c, 100); //最大读取100个字符，并存储在char数组中
+                cout << "读取的文件完毕，内容为：" << c << endl;
+            } else {
+                cout << "你输入有误，程序结束！" << endl;
             }
 
             break;
@@ -118,10 +109,9 @@ void fileReadWrite::close() {
     //只要读写对象不为空，则调用close方法释放对象
     if (writeStream != nullptr) writeStream->close();
     if (readStream != nullptr) readStream->close();
+    if (ReadWriteStream != nullptr) ReadWriteStream->close();
 }
 
-fileReadWrite::fileReadWrite(string path, ofstream *writeStream, ifstream *readStream, fstream *ReadWriteStream) :
-        filePath(path), writeStream(writeStream), readStream(readStream),ReadWriteStream(ReadWriteStream)
-{
+fileReadWrite::fileReadWrite(string path, fstream *w) : filePath(path), ReadWriteStream(w) {
 
 }

fileReadWrite.h

@@ -5,8 +5,7 @@
 #ifndef CPP_14_FILE_FILEREADWRITE_H
 #define CPP_14_FILE_FILEREADWRITE_H
 
-#include "iostream"
-#include "string"
+
 #include <fstream>  //操作文件的头文件
 
 using namespace std;
@@ -22,16 +21,16 @@ public:
 
     bool display = false; //是否把数据显示到屏幕
 
-    ofstream *writeStream= nullptr;  //写文件对象
-    ifstream *readStream= nullptr;   //读文件对象
-    fstream *ReadWriteStream= nullptr; //读写文件
+    ofstream *writeStream;  //写文件对象
+    ifstream *readStream;   //读文件对象
+    fstream *ReadWriteStream; //读写文件
 
-    fileReadWrite();
+    /*fileReadWrite();
+    fileReadWrite(string path);*/
 
-    fileReadWrite(string path);
     fileReadWrite(string path,ofstream *writeStream);
-    fileReadWrite(string path,ofstream *writeStream,ifstream *readStream);
-    fileReadWrite(string path,ofstream *writeStream,ifstream *readStream,fstream *ReadWriteStream);
+    fileReadWrite(string path,ifstream *readStream);
+    fileReadWrite(string path,fstream *ReadWriteStream);
 
     void openFile(model model, bool display);  //打开文件,参数的含义是选择文件的操作模式、文件内容输出目的地
     void close(); //关闭文件

main.cpp

 #include <iostream>
+#include <vector>
+#include "fileReadWrite.h"
+
+using namespace std;
+
 
 int main() {
-    std::cout << "Hello, World!" << std::endl;
+
+    //文件路径: 在本项目路径下新建一个文本文件叫test.txt
+    string filePath = "..\\test.txt"; //注意文件路径的写法，因为当前的程序编译路径不一致，所有需要用两个点回退到父级目录才能找到
+
+    //初始化读写文件对象
+    ifstream *in=new ifstream ;
+    ofstream *on=new ofstream ;
+    fstream  *io=new fstream ;
+
+    //初始化读文件封装类对象
+    /*fileReadWrite *frw=new fileReadWrite(filePath,in);
+    frw->openFile(fileReadWrite::read, true);
+    frw->close();*/
+
+    //初始化写文件封装类对象
+   /* fileReadWrite *fwr2=new fileReadWrite(filePath,on);
+    fwr2->openFile(fileReadWrite::write, true);
+    fwr2->close();*/
+
+   //初始化读写文件封装类对象
+    fileReadWrite *fwr3=new fileReadWrite(filePath,io);
+    fwr3->openFile(fileReadWrite::readWrite, true);
+    fwr3->close();
+
     return 0;
 }