Flutter fromMicrosecondsSinceEpoch 和 fromMillisecondsSinceEpoch

Flutter fromMicrosecondsSinceEpoch 和 fromMillisecondsSinceEpoch

void main() {
  var microSeconds = 1649571676566000;
  var date = new DateTime.fromMicrosecondsSinceEpoch(microSeconds);
  print(date); //2022-04-10 11:51:16.566

  var milliSeconds = 1649571676566;
  var date1 = DateTime.fromMillisecondsSinceEpoch(milliSeconds);
  print(date1); //2022-04-10 11:51:16.566
}