【javascript】操作cookie

js工具：

function SetCookie(name,value)//兩個參數，一個是cookie的名字，一個是值

{

var Days = 30; //此 cookie 將被保存30天

var exp = new Date(); //new Date("December 31, 9998");

exp.setTime(exp.getTime() + Days*24*60*60*1000);

document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();

}

function getCookie(name)//取cookies函数

{

var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));

if(arr != null) return unescape(arr[2]); return null;

}

function delCookie(name)//刪除cookie

{

var exp = new Date();

exp.setTime(exp.getTime() - 1);

var cval=getCookie(name);

if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();

}

//示例

SetCookie ("xiaoqi", "3")

alert(getCookie('xiaoqi'));