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js cookie

这里牛郎总结一个关于js的cookie操作,已经封装好,增删改查!代码如下:

function getAllCookie(){
var allstr = document.cookie;
return allstr;
}

// 获取指定cookie
function getCookie(c_name){
if (document.cookie.length>0){
c_start=document.cookie.indexOf(c_name + "=")
if (c_start!=-1){
c_start=c_start + c_name.length+1
c_end=document.cookie.indexOf(";",c_start)
if (c_end==-1) c_end=document.cookie.length
return unescape(document.cookie.substring(c_start,c_end))
}
}
return ""
}

// 添加cookie
function setCookie(objName,objValue,expiredays){
var exdate=new Date()
exdate.setDate(exdate.getDate()+expiredays)
document.cookie=objName+ "=" +escape(objValue)+ ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

// 删除cookie
function delCookie(objName){
var date = new Date();
date.setTime(date.getTime() - 10000);
document.cookie = objName + "=a; expires=" + date.toGMTString();
}
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