update zh-cn/application-dev/reference/apis/js-apis-xml.md.

更改xml.XmlPullParser接口的入参错误用法
Signed-off-by: N赵杜炜 <zhaoduwei3@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-xml.md

@@ -32,7 +32,7 @@ XmlSerializer的构造函数。
 
 ```js
 let arrayBuffer = new ArrayBuffer(2048);
-let thatSer = new xml.XmlSerializer(arrayBuffer,"utf-8");
+let thatSer = new xml.XmlSerializer(arrayBuffer, "utf-8");
 thatSer.setDeclaration();
 let result = '<?xml version="1.0" encoding="utf-8"?>';
 let view = new Uint8Array(arrayBuffer);
@@ -400,13 +400,9 @@ let strXml =
     '        </h:tr>' +
     '    </h:table>' +
     '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let i = 0; i < strLen; ++i) {
-    bufView[i] = strXml.charCodeAt(i);
-}
-let that = new xml.XmlPullParser(arrayBuffer, 'UTF-8');
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer, 'UTF-8');
 let str1 = '';
 function func1(name, value){
     str1 += name+':'+value;
@@ -442,13 +438,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -513,13 +505,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -560,13 +548,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -610,13 +594,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -657,13 +637,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -703,13 +679,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -749,13 +721,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -796,13 +764,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -842,13 +806,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -888,13 +848,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;
@@ -933,13 +889,9 @@ let strXml =
             '    <todo>Work</todo>' +
             '    <todo>Play</todo>' +
             '</note>';
-let arrayBuffer = new ArrayBuffer(strXml.length);
-let bufView = new Uint8Array(arrayBuffer);
-let strLen = strXml.length;
-for (let tmp = 0; tmp < strLen; ++tmp) {
-    bufView[tmp] = strXml.charCodeAt(tmp);
-}
-let that = new xml.XmlPullParser(arrayBuffer);
+let textEncoder = new util.TextEncoder();
+let arrbuffer = textEncoder.encodeInto(strXml);
+let that = new xml.XmlPullParser(arrbuffer.buffer);
 let arrTag = {};
 let str = "";
 let i = 0;