- Web App (前端: React, 后端: Node.js + Express)etym.cn
前端 (React):
jsx
// App.js (React Component)
import React from ‘react’;
function App() {
return (
Hello, World!
);
}
export default App;
后端 (Node.js + Express):
javascript
// app.js (Node.js with Express)
const express = require(‘express’);
const app = express();
const port = 3000;
app.get(‘/’, (req, res) => {
res.send(‘Hello, World!’);
});
app.listen(port, () => {
console.log(App listening at http://localhost:${port}
);
});
2. Android App (Kotlin/Java)
这里只展示一个简单的MainActivity.kt (Kotlin) 示例:
kotlin
// MainActivity.kt (Kotlin)
package com.example.myapp