|
|
@@ -0,0 +1,46 @@
|
|
|
+<!DOCTYPE html>
|
|
|
+<html lang="en">
|
|
|
+<head>
|
|
|
+ <meta charset="UTF-8">
|
|
|
+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
|
+ <title>Document</title>
|
|
|
+ <script src="./babel.min.js"></script>
|
|
|
+ <script src="./react.development.js"></script>
|
|
|
+ <script src="./react-dom.development.js"></script>
|
|
|
+</head>
|
|
|
+<body>
|
|
|
+ <div id="root"></div>
|
|
|
+ <!--
|
|
|
+ 单项数据流 props 推荐父级向子级传递 只读
|
|
|
+ -->
|
|
|
+ <script type="text/babel">
|
|
|
+ function Good(props) {
|
|
|
+ console.log(props,'父级的内容')
|
|
|
+ return (
|
|
|
+ <div style={{border:"2px solid #f00",padding:"10px"}}>
|
|
|
+ <p>这是一个父级标签</p>
|
|
|
+ <Day name='图图' age={4}></Day>
|
|
|
+ </div>
|
|
|
+ )
|
|
|
+ }
|
|
|
+ function Day(props) {
|
|
|
+ console.log(props,'子级的内容')
|
|
|
+ return (
|
|
|
+ <div style={{border:"2px solid #00f",padding:"10px"}}>
|
|
|
+ <p>这是一个子级标签</p>
|
|
|
+ <p>我的名字叫{props.name}</p>
|
|
|
+ <p>我今年{props.age}岁了</p>
|
|
|
+ <button onClick={()=>{
|
|
|
+ handelClick(props)
|
|
|
+ }}>获取内容</button>
|
|
|
+ </div>
|
|
|
+ )
|
|
|
+ }
|
|
|
+ function handelClick(props) {
|
|
|
+ console.log(props,'内容')
|
|
|
+ }
|
|
|
+ let element = <Good/>
|
|
|
+ ReactDOM.createRoot(document.querySelector("#root")).render(element);
|
|
|
+ </script>
|
|
|
+</body>
|
|
|
+</html>
|
e