<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>父向子传</title>
<script src="../lib/react.production.min.js" type="text/javascript" charset="utf-8"></script>
<script src="../lib/react-dom.production.min.js"></script>
<script src="../lib/browser.min.js"></script>
</head>
<body>
<div id="out"></div>
</body>
<script type="text/babel">
class App extends React.Component{
constructor(props){
super(props)
this.state={
str:""
}
}
tap(){
this.setState({str:this.refs.ipt.value})
}
render(){
return(
<div>
<h1>父传子</h1>
<input type="text" ref="ipt"/>
<button onClick={this.tap.bind(this)}>传值</button>
<Box name={this.state.str}/>
</div>
)
}
}
class Box extends React.Component{
constructor(props){
super(props)
}
render(){
return(
<div>
<h1>子组件</h1>
<div>值--{this.props.name}</div>
</div>
)
}
}
ReactDOM.render(<App />,document.getElementById('out'))
</script>
</html>react---父组件向子组件传值
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转载自blog.csdn.net/weixin_43868692/article/details/86502642
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