function setCookie(name, value, expires, path, domain, secure){    var cookieName = encodeURIComponent(name) + ‘=‘ + encodeURIComponent(value);    if(expires instanceof Date){        cookieName += ‘; expires=‘ + expires;    }    if(path){        cookieName += ‘; path=‘ + path;    }    if(domain){        cookieName += ‘; domain=‘ + domain;    }    if(secure){        cookieName += ‘; secure‘;    }    document.cookie=cookieName;}function getCookie(name){    var cookieName = encodeURIComponent(name) + ‘=‘;    var cookieStart = document.cookie.indexOf(cookieName);    var cookieValue = http://www.mamicode.com/null;    if(cookieStart>-1){        var cookieEnd = document.cookie.indexOf(‘;‘, cookieStart);        if(cookieEnd == -1){            cookieEnd = document.cookie.length;        }        cookieValue = document.cookie.substring(cookieStart + cookieName.length , cookieEnd);    }    return cookieValue;}console.log(getCookie(‘email‘));function setCookieDate(day){    var date = null;    if(typeof day == ‘number‘ && day>0){        date = new Date();        date.setDate(date.getDate()+day);    }else{        throw new Error(‘您传递的天数不合法！必须是数字且大于0‘);    }    return date.toGMTString();}

setCookie(‘user‘, ‘乐乐乐‘, setCookieDate(7));setCookie(‘url‘, ‘yfdsae.com‘, setCookieDate(7));setCookie(‘email‘, ‘yc69@13.com‘, setCookieDate(7));