1 <html>
2 <head>
3 <meta charset="utf-8">
4 <title>Javascript cookie</title>
5 <script type="text/javascript">
6 function getCookie(c_name)
7 {
8 alert(document.cookie);
9 if (document.cookie.length>0)
10 {
11 c_start=document.cookie.indexOf(c_name + "=");
12 if (c_start!=-1)
13 {
14 c_start=c_start + c_name.length+1;
15 c_end=document.cookie.indexOf(";",c_start);
16 if (c_end==-1) c_end=document.cookie.length
17 return unescape(document.cookie.substring(c_start,c_end));
18 }
19 }
20 return "";
21 }
22
23 function setCookie(c_name,value,expiredays)
24 {
25 var exdate=new Date();
26 exdate.setDate(exdate.getDate() + expiredays);
27 document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString());
28 }
29
30 function delCookie(name)
31 {
32 var exp = new Date();
33 exp.setTime(exp.getTime() - 1);
34 var cval = getCookie(name);
35 if (cval != null)
36 {
37 document.cookie= name + "=" + cval + ";expires=" + exp.toGMTString();
38 }
39 }
40
41 function checkCookie()
42 {
43 var username = getCookie(‘testJavascriptCookie‘);
44 if (username != null && username != "")
45 {
46 alert(‘Welcome again ‘ + username + ‘!‘);
47 }
48 else
49 {
50 username = prompt(‘Please enter your name:‘, "");
51 if (username != null && username != "")
52 {
53 setCookie(‘testJavascriptCookie‘, username, 365);
54 }
55 }
56 }
57
58 </script>
59 </head>
60
61 <body onLoad="checkCookie();">
62 </body>
63 </html>
时间： 2024-10-12 04:45:28