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2022-05-01 19:27:52 +08:00

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HTML

<!--
* @Author: chenxuan
* @Date: 2022-01-03 16:58:04
* @LastEditTime: 2022-01-03 18:46:40
* @LastEditors: chenxuan
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="../package/old/react.development.js"></script>
<script src="../package/old/react-dom.development.js"></script>
<script src="../package/old/babel.min.js"></script>
<script src="../package/old/prop-types.js"></script>
<title>事件</title>
</head>
<body>
<div id="app"></div>
<script type="text/babel">
class Demo extends React.Component{
getValue=(e)=>{
alert(e.target.value)
}
render(){
return(
<div>
<input type="text" onBlur={this.getValue}/>
</div>
)
}
}
ReactDOM.render(
<Demo/>,document.getElementById('app')
)
</script>
</body>
</html>