1、config/webpack.config.js中找到alias，添加'@': path.resolve('src') ，如下：

alias: {
        // Support React Native Web
        // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
        "react-native": "react-native-web",
        // Allows for better profiling with ReactDevTools
        ...(isEnvProductionProfile && {
          "react-dom$": "react-dom/profiling",
          "scheduler/tracing": "scheduler/tracing-profiling",
        }),
        ...(modules.webpackAliases || {}),
        "@": path.resolve("src")
},

2、tsconfg.json中配置，新增"paths":{"@/*":["./src/*"]}

{
    "compilerOptions": {
        "target": "es5",
        "lib": [
            "dom",
            "dom.iterable",
            "esnext"
        ],
        "allowJs": true,
        "skipLibCheck": true,
        "esModuleInterop": true,
        "allowSyntheticDefaultImports": true,
        "strict": true,
        "forceConsistentCasingInFileNames": true,
        "noFallthroughCasesInSwitch": true,
        "module": "esnext",
        "moduleResolution": "node",
        "resolveJsonModule": true,
        "isolatedModules": true,
        "noEmit": true,
        "jsx": "react-jsx",
        "paths": {
            "@/*": ["./src/*"]
        }
    },
    "include": [
        "src"
    ]
}

3、重启收工