57 lines
1.5 KiB
HTML
57 lines
1.5 KiB
HTML
<!--
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* @Author: chenxuan
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* @Date: 2022-01-11 15:26:22
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* @LastEditTime: 2022-01-11 15:34:02
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* @LastEditors: chenxuan
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-->
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<!DOCTYPE html>
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<html lang="en" dir="ltr">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="X-UA-Compatible" content="ie=edge">
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<title>refs属性</title>
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<script src="../bower_components/react/react.js"></script>
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<script src="../bower_components/react/react-dom.js"></script>
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<script src="../bower_components/babel/browser.js"></script>
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</head>
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<body>
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<div id="app"></div>
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<script type="text/babel">
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var A2=React.createClass({
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getInitialState:function(){
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return{
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data:["张三","李四","王五"]
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}
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},
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handle:function(){
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let arr=this.state.data;
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let _txt=this.refs.test1;
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arr.push(_txt.value);
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_txt.value='';
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this.setState({
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data:arr
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})
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},
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render:function(){
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let arr=this.state.data;
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return <ul>{
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arr.map(function(item){
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return <li>{item}</li>
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})
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}
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<li><input type="text" ref="test1"/></li>
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<li><button type="button" onClick={this.handle}>更新</button></li>
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</ul>
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}
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});
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//组件渲染
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ReactDOM.render(
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<A2/>
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,document.getElementById('app')
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)
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</script>
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</body>
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</html>
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