中央論壇 - CENTER BBS

標題: Cookie使用函數包 - create/get/delete輕鬆使用JS Cookie [打印本頁]

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作者: 死神    時間: 2014-1-5 01:26
標題: Cookie使用函數包 - create/get/delete輕鬆使用JS Cookie
提供一個很好用的Cookie函數包，輕鬆使用Javascript存取Cookie:

1. <script type="text/javascript">
   
2. 
   
3. //Create a cookie   
   
4. function createCookie(name,value,days) {
   
5. if (days) {
   
6.   var date = new Date();
   
7.   date.setTime(date.getTime()+(days*24*60*60*1000));
   
8.   var expires = "";
   
9.   expires=""+date.toGMTString();
   
10. }
    
11. else var expires = "";
    
12. document.cookie = name + "=" + value + "; expires=" + expires;  
    
13. }
    
14. 
    
15. //Get cookie
    
16. function GetCookie(name)
    
17. //Get Cookie default value
    
18. {
    
19.     var arg = name + "=";
    
20.     var alen = arg.length;
    
21.     var clen = document.cookie.length;
    
22.     var i = 0;
    
23.     while (i < clen) {
    
24.         var j = i + alen;
    
25.         if (document.cookie.substring(i, j) == arg)
    
26.             return GetCookieVal(j);
    
27.         i = document.cookie.indexOf(" ", i) + 1;
    
28.         if (i == 0) break;
    
29.     }
    
30.     return null;
    
31. }
    
32. function GetCookieVal(offset)
    
33. //Get Cookie value after decoding
    
34. {
    
35.     var endstr = document.cookie.indexOf(";", offset);
    
36.     if (endstr == -1)
    
37.         endstr = document.cookie.length;
    
38.     return unescape(document.cookie.substring(offset, endstr));
    
39. }
    
40. 
    
41. //Delete cookie
    
42. function DeleteCookie(name) {
    
43. createCookie(name,"",-1);
    
44. }
    
45. </script>

複製代碼

Example:

1. createCookie('cookie1','cookie_content',1);
   
2. GetCookie('cookie1');
   
3. DeleteCookie('cookie1');
   

複製代碼

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