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React學習筆記六:列表渲染

<!DOCTYPE html>
<html lang=">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>react 學習</title>
    <script src="https://cdn.bootcdn.net/ajax/libs/react/16.13.1/umd/react.production.min.js"
>
</script> <script src="https://cdn.bootcdn.net/ajax/libs/react-dom/16.13.1/umd/react-dom.production.min.js"></script> <script src="https://cdn.bootcdn.net/ajax/libs/babel-standalone/7.0.0-beta.3/babel.min.js"></script> </head> <body> <div
id="app">
</div> <script type="text/babel"> class App extends React.Component { state = { list: [{ id: 1, name: "小米", height: 133 }, { id: 2, name: "小紅"
, height: 131 }, { id: 3, name: "小張", height: 136 }] } render(){ const Lis = this.state.list.map(item=>{ return <li key={item.id}>姓名:{item.name},身高:{item.height}</li> }) return <ul> {Lis} </ul> } } ReactDOM.render( <App />, document.getElementById("app") );
</script> </body> </html>