C-002-017 / 跨过山丘
supports这些来源共同证明 Dart 2 的类型变化受多条工程压力影响，以及 Dart 2.3 的集合语法直接围绕 Flutter UI 构建；避免简化为 Flutter 单独改造 Dart。
返回逐字稿段落 flutter-writes-time-into-dart-p-033返回逐字稿段落 flutter-writes-time-into-dart-p-034返回逐字稿段落 flutter-writes-time-into-dart-p-036返回逐字稿段落 flutter-writes-time-into-dart-p-037