leiyanting

导航

 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>props基本使用</title>
</head>
<body>
    <!-- 准备好一个“容器” -->
    <div id="test1"></div>
    <div id="test2"></div>
    <div id="test3"></div>
    
    <!-- 引入react核心库 -->
    <script type="text/javascript" src="../js/react.development.js"></script>
    <!-- 引入react-dom,用于支持react操作DOM -->
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <!-- 引入babel,用于将jsx转为js -->
    <script type="text/javascript" src="../js/babel.min.js"></script>

    <script type="text/babel">
        //创建组件
        class Person extends React.Component{
            render(){
                // console.log(this);
                const {name,age,sex} = this.props
                return (
                    <ul>
                        <li>姓名:{name}</li>
                        <li>性别:{sex}</li>
                        <li>年龄:{age+1}</li>
                    </ul>
                )
            }
        }
        //渲染组件到页面
        ReactDOM.render(<Person name="jerry" age={19}  sex=""/>,document.getElementById('test1'))
        ReactDOM.render(<Person name="tom" age={18} sex=""/>,document.getElementById('test2'))

        const p = {name:'老刘',age:18,sex:''}
        // console.log('@',...p);
        // ReactDOM.render(<Person name={p.name} age={p.age} sex={p.sex}/>,document.getElementById('test3'))
        ReactDOM.render(<Person {...p}/>,document.getElementById('test3'))
    </script>
</body>
</html>

 

posted on 2022-01-02 11:30  leiyanting  阅读(42)  评论(0编辑  收藏  举报