Testaccount
/
1.Test


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 将jsx转为js -->
    <script src="./babel.min.js"></script>
    <!-- react核心库 -->
    <script src="./react.development.js"></script>
    <!-- react中dom操作库 -->
    <script src="./react-dom.development.js"></script>
</head>
<body>
    <div id="root"></div>
    <div id="btn">这是一个按钮</div>
    <script type="text/babel">
        function onClick(){
            console.log(this)
        }
        // 第一种
        document.getElementById("btn").onclick = onClick;
        var aaa={address:"这里是北京"};
        // 改变this指向：call bind apply 
        // 第二种
        let element = <div onClick={onClick.bind(aaa)}>这是第二个按钮</div>
        let newPage = ReactDOM.createRoot(document.querySelector("#root"));
        newPage.render(element)
    </script>
</body>
</html>