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Dart 我怎样才能在一小时前和弗利特坐上飞镖？_Dart_Flutter - Fatal编程技术网
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Dart 我怎样才能在一小时前和弗利特坐上飞镖？

dart flutter

Dart 我怎样才能在一小时前和弗利特坐上飞镖？,dart,flutter,Dart,Flutter,这是错误的 final anHourAgo = (new DateTime.now()) - Duration(minutes: Duration.minutesPerHour); 这应该起作用： Text(TimeOfDay.fromDateTime(DateTime.now().subtract(Duration(hours: 1))).format(context)), 问题解决了 final anHourAgo = (new DateTime.now()).subtract(new

这是错误的

final anHourAgo = (new DateTime.now()) - Duration(minutes: Duration.minutesPerHour);
这应该起作用：

Text(TimeOfDay.fromDateTime(DateTime.now().subtract(Duration(hours: 1))).format(context)),
问题解决了

final anHourAgo = (new DateTime.now()).subtract(new Duration(minutes: Duration.minutesPerHour));
非常感谢。我还找到了一个答案。