timestampToTimeD(timestamp) {
    let date = new Date(timestamp); //时间戳为10位需*1000，时间戳为13位的话不需乘1000
    let Y = date.getFullYear() + "-";//年
    let M =
      (date.getMonth() + 1 < 10
        ? "0" + (date.getMonth() + 1)
  : date.getMonth() + 1) + "-";//月
    let D =
      (date.getDate() < 10 ? "0" + date.getDate() : date.getDate()) + " ";//日
    let h =
      (date.getHours() < 10 ? "0" + date.getHours() : date.getHours()) + ":";
    let m =
      (date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes()) +
      ":";
    let s =
      date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();

    let strDate = Y + M + D + h + m + s;
    return strDate;
  }