<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <!--加载React--> <script src="https://unpkg.com/react@16/umd/react.development.js" crossorigin></script> <script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js" crossorigin></script> <!--支持JSX语法--> <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script> </head> <body> <div id="root"></div> <script type="text/babel"> ReactDOM.render( <h1>Hello,world!</h1>, document.getElementById('root') ); </script> </body> </html>
