擅长：数据分析,GameFi,NFT 步骤 1: 设置环境变量 ```js # .env.local (用于开发环境) NEXT_PUBLIC_TESTNET=true # .env.production (用于生产环境) NEXT_PUBLIC_TESTNET=false ``` 步骤 2: 动态导入文件 ```js import { useEffect, useState } from 'react'; const MyComponent = () => { const [module, setModule] = useState(null); useEffect(() => { const loadModule = async () => { let importedModule; if (process.env.NEXT_PUBLIC_TESTNET === 'true') { importedModule = await import('../generated_dev'); } else { importedModule = await import('../generated'); } setModule(importedModule); }; loadModule(); }, []); if (!module) { return <div>Loading...</div>; } const { XXX, YYY } = module; return ( <div> <XXX /> <YYY /> </div> ); }; export default MyComponent; ```