Flutter 常用命令：
| Flutter 常用命令 | 说明 |
|---|---|
| flutter | 列出所有的命令 |
| flutter help | 查看具体命令的帮助信息 |
| flutter doctor | 查看是否还需要安装其它依赖 |
| flutter doctor -v | 查看详细信息 |
| flutter channel | 查看 Flutter SDK 所有分支 |
| flutter channel stable | 切换分支 |
| flutter upgrade | 升级 Flutter SDK（此命令会同时更新 Flutter SDK 和你的 Flutter 项目依赖包） |
| flutter packages get | 获取项目所有的依赖包（只更新项目依赖包，不包括 Flutter SDK） |
| flutter packages upgrade | 获取项目所有依赖包的最新版本（只更新项目依赖包，不包括 Flutter SDK） |
| flutter analyze | 分析项目代码 |
| flutter build apk | |
| flutter build ios |
