Vue3 创建项目流程（vue create xxx）

$ npm uninstall vue-cli -g

$ npm install -g @vue/cli

$ vue --version

$ vue create 项目名

? Please pick a preset: (Use arrow keys)
  Default ([Vue 3] babel, eslint)  // 默认 vue3 配置
  Default ([Vue 2] babel, eslint)  // 默认 vue2 配置
❯ Manually select features         // 手动选择配置

? Check the features needed for your project: (Press <space> to select, <a> to toggle all, <i> to invert selection, and <enter> to proceed)
❯◉ Babel                              // 代码编译
 ◉ TypeScript                         // ts
 ◯ Progressive Web App (PWA) Support  // 支持渐进式网页应用程序
 ◉ Router                             // vue路由
 ◉ Vuex                               // 状态管理模式
 ◉ CSS Pre-processors                 // css预处理
 ◯ Linter / Formatter                 // 代码风格、格式校验（个人不喜欢受约束）
 ◯ Unit Testing                       // 单元测试
 ◯ E2E Testing                        // 端对端测试

? Choose a version of Vue.js that you want to start the project with (Use arrow keys)
❯ 3.x 
  2.x

? Use class-style component syntax? (y/N) n

? Use Babel alongside TypeScript (required for modern mode, auto-detected polyfills, transpiling JSX)? (Y/n) y

? Use class-style component syntax? (y/N) y

? Use history mode for router? (Requires proper server setup for index fallback in production) (Y/n) y

? Pick a CSS pre-processor (PostCSS, Autoprefixer and CSS Modules are supported by default):  
  Sass/SCSS (with dart-sass) 
❯ Less 
  Stylus

? Where do you prefer placing config for Babel, ESLint, etc.? (Use arrow keys)
❯ In dedicated config files  // 存放在专用配置文件中，也就是独立文件存储
  In package.json            // 存放在 package.json 中

? Save this as a preset for future projects? (y/N) n