js vue 时间戳转时间

    add0 (m) {
      return m < 10 ? '0' + m : m
    },
    format (time) {
      // shijianchuo是整数，否则要parseInt转换
      var time1 = new Date(time)
      var y = time1.getFullYear()
      var m = time1.getMonth() + 1
      var d = time1.getDate()
      var H = time1.getHours()
      var M = time1.getMinutes() // 分
      var S = time1.getSeconds() // 秒
      return y + '-' + this.add0(m) + '-' + this.add0(d) + ' ' + this.add0(H) + ':' + this.add0(M) + ':' + this.add0(S)
    },
    
    this.format(1561651200000) // 2019-6-28 00:00:00