// date为日期，days为天数
function AddDays(date, days) {
            var nd = new Date(date);
            nd = nd.valueOf();
            nd = nd + days * 24 * 60 * 60 * 1000;
            nd = new Date(nd);
            var y = nd.getFullYear();
            var m = nd.getMonth() + 1;
            var d = nd.getDate();
            if (m <= 9) m = "0" + m;
            if (d <= 9) d = "0" + d;
            var cdate = y + "-" + m + "-" + d + ‘ ‘+nd.getHours() + ‘:‘ + nd.getMinutes() + ‘:‘ + nd.getDate();
            return cdate;
        }