用法：
一、设置cookie
var cookie = new JSCookie();
// 普通设置
cookie .SetCookie("key1","val1");
// 过期时间为一年
var expire_time = new Date();
expire_time.setFullYear(expire_time.getFullYear() + 1);
cookie .SetCookie("key2","val2",expire_time);
// 设置域及路径，带过期时间
cookie .SetCookie("key3","val3",expire_time,".cnblogs.com","/");
// 设置带子键的cookie,子键分别是k1,k2,k3
cookie .SetCookie("key4","k1=1&k2=2&k3=3");
二、读取cookie
// 简单获取
cookie .GetCookie("key1");
cookie .GetCookie("key2");
cookie .GetCookie("key3");
cookie .GetCookie("key4");
// 获取key4的子键k1值
cookie .GetChild("key4","k1");
三、删除
cookie .Expire("key1");
cookie .Expire("key2");
cookie .Expire("key3");
cookie .Expire("key4");
示例：
| <script type="text/javascript"> |
| String.prototype.Trim = function() |
| { |
| return this.replace(/^\s+/g,"").replace(/\s+$/g,""); |
| } |
| function JSCookie() |
| { |
| this.GetCookie = function(key) |
| { |
| var cookie = document.cookie; |
| var cookieArray = cookie.split(’;’); |
| var getvalue = ""; |
| for(var i = 0;i<cookieArray.length;i++) |
| { |
| if(cookieArray[i].Trim().substr(0,key.length) == key) |
| { |
| getvalue = cookieArray[i].Trim().substr(key.length + 1); |
| break; |
| } |
| } |
| return getvalue; |
| }; |
| this.GetChild = function(cookiekey,childkey) |
| { |
| var child = this.GetCookie(cookiekey); |
| var childs = child.split(’&’); |
| var getvalue = ""; |
| for(var i = 0;i < childs.length;i++) |
| { |
| if(childs[i].Trim().substr(0,childkey.length) == childkey) |
| { |
| getvalue = childs[i].Trim().substr(childkey.length + 1); |
| break; |
| } |
| } |
| return getvalue; |
| }; |
| this.SetCookie = function(key,value,expire,domain,path) |
| { |
| var cookie = ""; |
| if(key != null && value != null) |
| cookie += key + "=" + value + ";"; |
| if(expire != null) |
| cookie += "expires=" + expire.toGMTString() + ";"; |
| if(domain != null) |
| cookie += "domain=" + domain + ";"; |
| if(path != null) |
| cookie += "path=" + path + ";"; |
| document.cookie = cookie; |
| }; |
| this.Expire = function(key) |
| { |
| expire_time = new Date(); |
| expire_time.setFullYear(expire_time.getFullYear() - 1); |
| var cookie = " " + key + "=e;expires=" + expire_time + ";" |
| document.cookie = cookie; |
| } |
| } |
| </script> |
本文转自钢钢博客园博客，原文链接：http://www.cnblogs.com/xugang/archive/2010/10/14/1851123.html，如需转载请自行联系原作者