cookie封装

//设置cookie

function setCookie(name,value,days){

    //如果不设置天数 , 默认为30天

    days=days?days:30;

    var exp=new Date();

    exp.setTime(exp*1+days*(24*60*60*1000));

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

}

 

setCookie("marray","lili@sohu.com",1);

setCookie("num","123456",1);

setCookie("ok","myhello",1);

setCookie("my","我的",1);

 

//获取cookie

 

function getCookie(name){

    // document.cookie 获取所有的cookie 包括名称和值 类型为字符串

    var reg=new RegExp('(^| )'+name+'=([^;]*)(;|$)');

    var arr=document.cookie.match(reg);

    if(arr) return unescape(arr[2]);

    return null;

}

 

console.log(getCookie("marray"));

console.log(getCookie("num"));

console.log(getCookie("my"));

 

//删除cookie 

function delCokie(name){

    // 设置时间过期

    if(getCookie(name)){

        setCookie(name,"",-1);

    }

}

 

delCokie("marray");

delCokie("num");

delCokie("ok");