Dart: 时间之间比较

var currDateTime = DateTime.parse("2022-08-20 21:17:00");
 var createDateTime = DateTime.parse("2022-08-20 20:17:00");
 var diffDateTime = currDateTime.difference(createDateTime);
 var diffDateTimeText =
            "-- ${diffDateTime.inMinutes}分钟,${diffDateTime.inSeconds}秒 --";
  print(diffDateTimeText);
// 输出
// -- 60分钟,3600秒 --