0
点赞
收藏
分享

微信扫一扫

Java:爬虫htmlunit

三次方 2024-01-07 阅读 16

html引入react

效果

在这里插入图片描述

代码

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>React App</title>
</head>
<body>
  <div id="root"></div>
  <script crossorigin src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
  <script crossorigin src="https://unpkg.com/react@17/umd/react.production.min.js"></script>
  <script crossorigin src="https://unpkg.com/react-dom@17/umd/react-dom.production.min.js"></script>

  <script type="text/babel">

    function App() {
        const [count, setCount] = React.useState(0);

        React.useEffect(() => {
        console.log('Component is mounted');
        return () => {
          console.log('Component will unmount');
        };
      }, []); 

      return (
        <div>
          <h1>Hello, React!</h1>
          <p>This is a simple React component.</p>
          <p>开始数字{count} </p>
                <button onClick={() => setCount(count + 1)}>
                    点击
          </button>
        </div>
      );
    };

    ReactDOM.render(<App />, document.getElementById('root'));
  </script>
</body>
</html>

注意

这一段很重要,type="text/babel" 和 cdn 引用错误会导致失效。

  <script crossorigin src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
  <script crossorigin src="https://unpkg.com/react@17/umd/react.production.min.js"></script>
  <script crossorigin src="https://unpkg.com/react-dom@17/umd/react-dom.production.min.js"></script>
	<script type="text/babel">
举报

相关推荐

0 条评论