let nowDate = new Date();
      let date = {
        year: nowDate.getFullYear(),
        month: nowDate.getMonth() + 1,
        date: nowDate.getDate(),
        hours: nowDate.getHours(),
        minutes: nowDate.getMinutes(),
        seconds: nowDate.getSeconds(),
      };      
      let newmonth = date.month > 10 ? date.month : "0" + date.month;
      let newday = date.date > 10 ? date.date : "0" + date.date;
      let newminutes = date.minutes < 10 ? "0" + date.minutes : date.minutes;
      let newseconds = date.seconds < 10 ? "0" + date.seconds : date.seconds;
      // 我需要的时间格式为 "yyyy-MM-dd HH:mm:ss" 有不一样的自己拼别的，都是字符串拼接
      this.newTime =
        date.year +
        "-" +
        newmonth +
        "-" +
        newday +
        " " +
        date.hours +
        ":" +
        newminutes +
        ":" +
        newseconds;