读取cookie、写进cookie方法

整理 读取cookie、写进cookie方法。

//设置cookies中的值

function setCookie(name, value) {

var Days = 30;

var exp = new Date();

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

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

}

setCookie("openId", "otuBSwKR-RhIjxxD2Oq3HeuUXNcU");

//获取cookies中的值

function getCookie(name) {

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

if(arr = document.cookie.match(reg))

return unescape(arr[2]);

else

return null;

}

var openId = getCookie("openId");