SOURCE

console 命令行工具 X clear

                    
>
console
 
  
<html>
    <head>
        <meta charset="UTF-8" />
        <title>Hello World</title>
        <script src="https://unpkg.com/react@16/umd/react.development.js"></script>
        <script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
        <script src="https://unpkg.com/babel-standalone@6.15.0/babel.min.js"></script>
    

    </head>
    
    <body>
    <!-- 还要注意script标签要加type="text/babel",不然无法识别jsx语法哦 -->
    <script type="text/babel">
    ReactDOM.render(
        <h1>Hello, world!</h1>,
        document.getElementById('root')
    );
    </script>


        <div id="root"></div>
        <script type="text/babel">
          //我们的react
        </script>
    </body>
</html>