创建 umi 项目

首先，在新目录下使用 yarn create umi

$ mkdir myapp && cd myapp
$ yarn create umi

选择 project，

? Select the boilerplate type (Use arrow keys)
  ant-design-pro  - Create project with an layout-only ant-design-pro boilerplate, use together with umi block.
❯ app             - Create project with a simple boilerplate, support typescript.
  block           - Create a umi block.
  library         - Create a library with umi.
  plugin          - Create a umi plugin.

选择是否使用 TypeScript，

? Do you want to use typescript? (y/N)

然后，选择你需要的功能，功能介绍详见 plugin/umi-plugin-react，

? What functionality do you want to enable? (Press <space> to select, <a> to toggle all, <i> to invert selection)
❯◯ antd
 ◯ dva
 ◯ code splitting
 ◯ dll

确定后，会根据你的选择自动创建好目录和文件，

create package.json
   create .gitignore
   create .editorconfig
   create .env
   create .eslintrc
   create .prettierignore
   create .prettierrc
   create .umirc.js
   create mock/.gitkeep
   create src/app.js
   create src/assets/yay.jpg
   create src/global.css
   create src/layouts/index.css
   create src/layouts/index.js
   create src/models/.gitkeep
   create src/pages/index.css
   create src/pages/index.js
   create webpack.config.js
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然后安装依赖，

$ yarn

最后通过 yarn start 启动本地开发，

$ yarn start

在浏览器打开 http://localhost:8000即可。