01_hello world

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>01_HelloWorld</title>
</head>
<body>
    <div id="test"></div>

    <script type="text/javascript" src="../js/react.development.js"></script><!--react核心库-->
    <script type="text/javascript" src="../js/react-dom.development.js"></script><!--操作dom的react扩展库-->
    <script type="text/javascript" src="../js/babel.min.js"></script><!--在这里——>解析JSX语法代码转为纯JS语法代码的库-->
    <script type="text/babel">
        // 1.创建虚拟dom元素对象 JSX语法
        var vDom = <h1>hello react!!!</h1>
        // 2.将虚拟dom渲染到页面真实的dom容器中
        ReactDOM.render(vDom, document.getElementById('test'))
    </script>
</body>
</html>

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转载自www.cnblogs.com/zhanzhuang/p/10703321.html