ajax技術的簡單練習題

來源:互聯網
上載者:User
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>

    <title>Test</title>

 // 引入js
    <script src="Scripts/jquery-1.10.2.min.js"></script>

    <script src="Scripts/jquery-1.10.2.intellisense.js"></script>
    <script type="text/javascript">
       $(function () {
              // alert(1);
               $('a')[0].onclick = function () {

                   // alert(1);

//建立XMLHttpRequest對象

                   var xhr = new XMLHttpRequest();

// 請求方式

                   var method = "GET";

//請求地址

                   var url = this.href;

//open 方法

                   xhr.open(method, url);

//send

                   xhr.send(null);

//狀態檢查員
                   xhr.onreadystatechange = function () {
                       if (xhr.readyState == 4) {
                           if (xhr.status == 200 || xhr.status == 304) {
                               alert(xhr.responseText);
                           }
                       }
                   }
                   return false;
            }
        })

    </script>
</head>

<body>

// 頁面內容
    <a href="text.txt">hello</a>
</body>
</html>

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