| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566 |
- <!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>
- .head {
- color: orange;
- }
- .aa {
- color: red;
- }
- .bb {
- font-style: italic;
- }
- .cc {
- text-decoration: underline;
- }
- .dd {
- background: #ff0;
- }
- .ee {
- background: #00f;
- }
- </style>
- <!-- <link rel="stylesheet" href="./css/b.css" precedence="high">
- <link rel="stylesheet" href="./css/a.css" precedence="low"> -->
- </head>
- <body>
- <div id="root"></div>
- <script type="text/babel">
- const news = 'aa';
- const isActive = false;
- const other = ['aa', 'cc', isActive ? 'dd' : 'ee']
- const element = (
- <div>
- {/* 单个类名 */}
- <h1 className='head'>Class样式绑定</h1>
- {/* 多个类名:字符串 */}
- <h3 className={'aa bb'}>哈哈哈</h3>
- {/* 多个类名:模版字符串 */}
- <div className={`${news} ${isActive ? 'bb' : 'cc'}`}>大家好</div>
- {/* 多个类名:数组 + join() */}
- <div className={other.join(' ')}>endeing</div>
- <div className='end'>最后</div>
- </div>
- )
- const container = document.getElementById("root");
- const root = ReactDOM.createRoot(container)
- root.render(element);
- </script>
- </body>
- </html>
|