安装 Flutter 插件
Install the Flutter plugin
请在第一次使用前安装 Flutter 插件，它可以在 Intellij 的 Plugins
或 Android Studio 的设置中开启，页面打开后便可以在 marketPlace 中找到 Flutter 插件。
Install the Flutter plugin if you don’t already have it installed.
This can be done using the normal Plugins page in the IntelliJ
and Android Studio settings. Once that page is open,
you can search the marketplace for the Flutter plugin.
开始调试一个应用
Start an app to debug
需要在启动调试工具前开启一个 Flutter 应用，它可以通过打开 Flutter 项目实现，首先要确保你已经完成设备的连接，然后只需点击工具栏的 Run 或 Debug 按钮。
To open DevTools, you first need to run a Flutter app.
This can be accomplished by opening a Flutter project,
ensuring that you have a device connected,
and clicking the Run or Debug toolbar buttons.
从工具栏/菜单启动调试工具
Launch DevTools from the toolbar/menu
应用启动后，你可以通