1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2 <html xmlns="http://www.w3.org/1999/xhtml">
3 <head>
4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
5 <script src="/js/jquery-1.4.2.min.js" type="text/javascript"></script>
6 <script type="text/javascript">
7 $(document).ready(
8 function() {
9 $("#form01").change(
10 function() {
11 var filepath = $("input[name=‘myFile‘]").val();
12 var extStart = filepath.lastIndexOf(".");
13 var ext = filepath.substring(extStart,
14 filepath.length).toUpperCase();
15 if (ext != ".BMP" && ext != ".PNG" && ext != ".GIF"
16 && ext != ".JPG" && ext != ".JPEG") {
17 alert("图片限于bmp,png,gif,jpeg,jpg格式");
18 return false;
19 } else {
20 $("#name01").text(ext)
21 }
22 var file_size = 0;
23 if ($.browser.msie) {
24 var img = new Image();
25 img.src = filepath;
26 while (true) {
27 if (img.fileSize > 0) {
28 if (img.fileSize > 3 * 1024 * 1024) {
29 alert("图片不大于100MB。");
30 } else {
31 var num03 = img.fileSize / 1024;
32 num04 = num03.toFixed(2)
33 $(".size02").text(num04 + "KB");
34 }
35 break;
36 }
37 }
38 } else {
39 file_size = this.files[0].size;
40 console.log(file_size / 1024 / 1024 + " MB");
41 var size = file_size / 1024;
42 if (size > 10240) {
43 alert("上传的文件大小不能超过10M！");
44 } else {
45 var num01 = file_size / 1024;
46 num02 = num01.toFixed(2)
47 $("#size01").text(num02 + " KB");
48 }
49 }
50 return true;
51 });
52 });
53 </script>
54 <title>无标题文档</title>
55 </head>
56 <body>
57 <table width="500" cellspacing="0" cellpadding="0">
58 <tr>
59 <td width="72" id="name01"></td>
60 <td width="242"><input type="file" name="myFile" id="form01" /></td>
61 <td width="184" id="size01" class="size02"></td>
62 </tr>
63 </table>
64 </body>
65 </html>
时间： 2024-10-13 11:56:43