function changeDateFormat(val) {
        if (val != null) {
            var date = new Date(parseInt(val.replace("/Date(", "").replace(")/", ""), 10));
            //月份為0-11所以+1，月份小於10補個0
            var month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) : date.getMonth() + 1;
            var currentDate = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
            var hour = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
            var minute = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
            var second = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
            var dd = date.getFullYear() + "-" + month + "-" + currentDate + " " + hour + ":" + minute + ":" + second;
            return dd;
        }
    }