<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<script src="https://cdn.bootcss.com/react/16.4.0/umd/react.development.js"></script>
<script src="https://cdn.bootcss.com/react-dom/16.4.0/umd/react-dom.development.js"></script>
<script src="https://cdn.bootcss.com/babel-standalone/6.26.0/babel.min.js"></script>
<title>Document</title>
</head>
<body>
<div id="app"></div>
<script type="text/babel">
class Demo extends React.Component{
constructor(props){
super(props)
this.state={
arr:[]
}
}
tap(){
var att = this.state.arr;
att.push(this.refs.zhi.value)
this.setState({arr:att})
this.refs.zhi.value=""
}
del(key){
var arr1 = this.state.arr;
arr1.splice(key,1)
this.setState({arr:arr1})
}
render(){
var that = this
var jsx=[]
this.state.arr.map(function(item,key){
jsx.push(<div>{item}----------<button onClick={that.del.bind(that,key)}>删除</button></div>)
})
return(
<div>
<input type="text" ref="zhi"/>
<button onClick={this.tap.bind(this)}>添加</button>
<hr/>
{jsx}
</div>
)
}
}
ReactDOM.render(<Demo/>,document.getElementById("app"))
</script>
</body>
</html>
react-todolist
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转载自blog.csdn.net/QQ_Empire/article/details/81321967
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