体验ReactReact 让你可以通过组件来构建用户界面。崇尚以简单为主，从此走向人生巅峰，后续继续推出React系列

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script crossorigin src="https://unpkg.com/react@18/umd/react.production.min.js"></script>
  <script crossorigin src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js"></script>
  <!-- babel引入，用于处理jsx -->
  <script src="https://unpkg.com/babel-standalone@6/babel.js"></script>
</head>

<body>
  <!-- React挂载点 -->
  <div id="app"></div>

  <script type="text/babel">
    // 获取挂载点元素
    const appEl = document.getElementById('app');
    // 创建根节点
    const root = ReactDOM.createRoot(appEl)

    // 创建函数式组件
    const App = () => {
      // 定义响应状态
      const [inputV, setInputV] = React.useState('')
      return (
        <div>
          <h1>Hello React</h1>
          <input type="text" onChange={(e) => setInputV(e.target.value)} />
          <p>{inputV}</p>
        </div>
      )
    }

    // 渲染组件
    root.render(<App />)
  </script>


</body>

</html>