# 修改前端文件

现在可以为程序创建新的前端了

1. 编辑器中打开webpack配置文件（webpack.config.js）
2. 修改前端入口用index.jsx替换默认index.html

   ```
   entry: {
     // The frontend.entrypoint points to the HTML file for this build.
     // Use the next line to change the extension. For example, the
     // default configuration changes the extension to `.js`.
     index: path.join(__dirname, info.frontend.entrypoint).replace(/\.html$/, ".jsx"),
   },
   ```
3. 定位plugins项上面的module键的注释例子，然后将下面的几行取消注释

   ```
   module: {
     rules: [
       { test: /\.(js|ts)x?$/, loader: "ts-loader" },
       { test: /\.css$/, use: ['style-loader','css-loader'] }
     ]
   },
   ```

   这些配置允许你的程序使用ts-loader编译器并导入css文件
4. 保存webpack.config.js文件并退出
5. 项目根目录下创建新的tsconfig.json文件
6. 打开tsconfig.json文件，然后复制粘贴下面的内容到文件

   ```
   {
       "compilerOptions": {
         "target": "es2018",        /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
         "lib": ["ES2018", "DOM"],  /* Specify library files to be included in the compilation. */
         "allowJs": true,           /* Allow javascript files to be compiled. */
         "jsx": "react",            /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
       },
       "include": ["src/**/*"],
   }
   ```
7. 保存修改并关闭tsconfig.json文件继续


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