Ionic项目创建

How to Install The Ionic Framework CLI to Build Mobile Apps

npm uninstall -g ionic // 先移除旧版本的CLI
npm install -g @ionic/cli // 安装新版本的CLI
ionic start // 运行此命令初始化项目，会打开浏览器让您填入APP名字、选择APP的icon、选择主题颜色、选择布局类型、选择框架（Angular、Vue、React），选择完成之后会让您登录，登录之后，控制台就会自动下载template并且安装依赖。

安装完成后会提示：

Your Ionic app is ready! Follow these next steps:

- Go to your new project: cd .\ionic-app
- Run ionic serve within the app directory to see your app in the browser
- Run ionic capacitor add to add a native iOS or Android project using Capacitor
- Generate your app icon and splash screens using cordova-res --skip-config --copy
- Explore the Ionic docs for components, tutorials, and more: https://ion.link/docs
- Building an enterprise app? Ionic has Enterprise Support and Features: https://ion.link/enterprise-edition

从上面的提示信息可以看到：

• ionic serve 启动项目
• capacitor add to add 添加Android或iOS原生支持

npm run start 和 ionic serve 的区别是什么？