react篇章-React 组件-ES6 class 来定义一个组件
<!DOCTYPE html><html>
<head>
<meta charset="UTF-8" />
<title>菜鸟教程 React 实例</title>
<script src="https://cdn.staticfile.org/react/16.4.0/umd/react.development.js"></script>
<script src="https://cdn.staticfile.org/react-dom/16.4.0/umd/react-dom.development.js"></script>
<script src="https://cdn.staticfile.org/babel-standalone/6.26.0/babel.min.js"></script>
</head>
<body>
<div id="example"></div>
<script type="text/babel">
function HelloMessage(props) {
return <h1>Hello World!</h1>;
}
class Welcome extends React.Component {
render() {
return <h1>Hello World1 class</h1>;
}
};
const element = <Welcome />;
ReactDOM.render(
element,
document.getElementById('example')
);
</script>
</body>
</html>
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