lovecoding
/
w1020


			
				
					
						
						
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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>
    <script src="./babel.min.js"></script>
    <script src="./react.development.js"></script>
    <script src="./react-dom.development.js"></script>
    <style>
        .tips {
            color: yellow;
        }

        .big {
            font-size: 50px;
        }
    </style>
</head>

<body>
    <div id="root">
    </div>
    <!-- 
        样式绑定:
            class => className:在样式表中定义 绑定字符串 对象{表达式}
            格式：
                1.className='类名'
                2.className={'类名'}
            style:在jsx语法中定义 绑定对象
    -->
    <script type="text/babel">
        let title = {
            color: 'purple',
            fontSize: '40px'
        }
        let element = <h1 className={'tips big'}>哈哈</h1>;
        element = <h1 className='tips'>哈哈</h1>;
        element = <h1 className={7 > 5 ? 'tips' : 'big'}>哈哈</h1>;
        element = <p style={title}>今天星期四</p>
        const root = ReactDOM.createRoot(document.getElementById("root"));
        root.render(element);
    </script>
</body>

</html>