设置cookie
function setCookie(c_name,value,expiredays){ var exdate=new Date(); exdate.setDate(exdate.getDate()+expiredays) document.cookie=c_name+"="+escape(value)+((expiredays==null)?"":";expires="+exdate.toGMTString()) }
获取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));
}
}
}
删除cookie
function delCookie(name){
var exp=new Date();
exp.setTime(exp.getTime(-1));
var cval=getCookie(name);
if(cval!=null){
document.cookie=name+"="+cval+";expires="+exp.toGMTString();
}
}
调用测试
window.onload=function(){
setCookie("username","zqy",1*24*60*60);
setCookie("user","lb",1*24*60*60);
setCookie("users","zqy-lb",1*24*60*60);
alert(document.cookie)
delCookie("users")
alert(document.cookie)
alert(getCookie("username"));
}
运行图片


