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/** * @desc  设置Cookie * @param {String} name * @param {String} value * @param {Number} expires */function setCookie(name, value, expires) {    var cookieString = name + "=" + escape(value);    //判斷是否設置過期時間,0代表關閉瀏覽器時失效    if (expires > 0) {        var date = new Date();        date.setTime(date.getTime() + expires * 1000);        cookieString = cookieString + ";expires=" + date.toUTCString();    }    document.cookie=cookieString;}/** * @desc 根据name读取cookie * @param  {String} name * @return {String} */function getCookie(name) {    var arr = document.cookie.replace(/\s/g, "").split(';');    for (var i = 0; i < arr.length; i++) {        var tempArr = arr[i].split('=');        if (tempArr[0] == name) {            return decodeURIComponent(tempArr[1]);        }    }    return '';}/** * @desc 根据name修改cookie * @param  {String} name * @param  {String} value * @param  {Number} expires */function editCookie(name, value, expires){    var cookieString = name + "=" + escape(value);    if (expires > 0) {        var date = new Date();        date.setTime(date.getTime() + expires * 1000);        cookieString = cookieString + ";expires=" + date.toGMTString();    }    document.cookie = cookieString;}/** * @desc 根据name删除cookie * @param  {String} name */function removeCookie(name) {    // 设置已过期，系统会立刻删除cookie    setCookie(name, '1', -1);}