lovecoding
/
VIP26


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
    <head>
        <title></title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <!-- 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 class="btn">第二个事件</div> -->
        </div>
        <!-- type="text/babel"
            告诉babel库 将jsx转成js
         -->
         <!-- document.querySelect(".btn").onclick -->
        <script type="text/babel">
            function handleClick() {
                console.log("今天天气真好")
            }
            function handleChange(e) {
                console.log("发生更改了",e.target.value)
            }
            function handleSubmit() {
                console.log("提交了")
            }
            //点击事件
            // React中 事件处理 onXXX 驼峰命名法 
            // 点击事件 onClick
            // 改变事件 onChange
            let element  = (
                <div>
                    <button onClick={handleClick}>点击按钮</button>
                    {/** <div class="btn" >点击事件</div>*/}
                    <br/>
                    <input type="text" onChange={handleChange} />
                    <form onSubmit={handleSubmit}>
                        <button>提交</button>
                    </form>
                </div>
                    
            )
            ReactDOM.createRoot(document.querySelector("#root")).render(element)
        </script>

    </body>
</html>