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JavaScript对cookie的增删改查

zhanimei

炸你妹的时候准备加个认证cookie跳转广告页面,于是就有了这个文章。

JavaScript写cookie
[code lang=”js”]
function setCookie(c_name,value,expiredays,path) {
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ “=” +escape(value)+ ((expiredays==null) ? “” : “;expires=”+exdate.toGMTString()) + “;” + ((path==null) ? “” : “path=” + escape(path));
}
setCookie(“Manito”,”5yuns.com”,24);
[/code]
JavaScript读cookie
[code lang=”js”]
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 “”;
}
[/code]
JavaScript删除cookie
[code lang=”js”]
function delCookie(name) {
var date = new Date();
date.setTime(date.getTime() – 10000);
document.cookie = name + “=a; expires=” + date.toGMTString() + “;path=*”;
}
[/code]
JavaScript清除所有cookie
[code lang=”js”]
function removeCookie() {
var cookie = document.cookie.split(“;”);
for (var i in cookie) {
delCookie(cookie[i].substring(cookie[i].indexOf(“=”),0));
}
}
[/code]

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