1、config/webpack.config.js中找到alias，添加"@": path.resolve(__dirname,'../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(__dirname,'../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