//读Cookiefunction getCookie(objName) {//获取指定名称的cookie的值    var arrStr = document.cookie.split("; ");    for (var i = 0; i < arrStr.length; i++) {        var temp = arrStr[i].split("=");        if (temp[0] == objName) return unescape(temp[1]);    }    return "";}//设置cookie的值function setCookie(cname, cvalue, exdays) {    var d = new Date();    console.log(cname + ‘/‘ + cvalue + ‘/‘ + exdays)    d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));    var expires = "expires=" + d.toGMTString();    document.cookie = cname + "=" + escape(cvalue) + "; " + expires;    console.log(document.cookie);}