今天被 chat 坑了

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# 错误的表达方式
  int ms = 1000;

  var format = DateFormat('HH:mm:ss');
  var date = DateTime.fromMillisecondsSinceEpoch(ms);
  print(format.format(date)); // 00:00:01

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# 正确的方式
  String timestampToTime(int timestamp) {
    print("timestamp : ${timestamp}");
    int hour = (timestamp / 3600).toInt();
    int minute = (timestamp / 60 /60).toInt();
    int second = (timestamp%60).toInt();

    return "${hour.toString().padLeft(2, '0')}:${minute.toString().padLeft(2, '0')}:${second.toString().padLeft(2, '0')}";
  }