copy method

DateTime copy({
  1. int? year,
  2. int? month,
  3. int? day,
  4. int? hour,
  5. int? minute,
  6. int? second,
})

时间转换，只支持以下字符串

Implementation

DateTime copy(
    {int? year, int? month, int? day, int? hour, int? minute, int? second}) {
  return DateTime(
    year ?? this.year,
    month ?? this.month,
    day ?? this.day,
    hour ?? this.hour,
    minute ?? this.minute,
    second ?? this.second,
  );
}