IE浏览器下读取客户端上传的文件大小

时间：2024-08-03 13:36:02
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

 <html>

 <head>

 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

 <title>文件大小判断</title>

 </head>

 <body>

 限制：<input type="text" size="4" value="10" name="fileSizeLimit" id="fileSizeLimit"/> K

 <input type="file" name="file1" id="file1" size="40" onchange="changeSrc(this)"/>

 <br>

 <img id="fileChecker" />   

 <script type="text/javascript">

 var oFileChecker = document.getElementById("fileChecker");  

 function changeSrc(filePicker)

 {

     oFileChecker.src = filePicker.value;

 }  

 oFileChecker.onreadystatechange = function ()

 {

     if (oFileChecker.readyState == "complete")

     {

         checkSize();

     }

 }  

 function checkSize()

 {

     var limit  = document.getElementById("fileSizeLimit").value * 1024;  

     if (oFileChecker.fileSize > limit)

     {

         alert("文件大小超出限制!");

     }

     else

     {

         alert("文件大小符合要求.");

     }

 }

 </script>

 </body>

 </html>

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