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@@ -0,0 +1,66 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+ <script src="./babel.min.js"></script>
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+ <script src="./react.development.js"></script>
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+ <script src="./react-dom.development.js"></script>
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+ <style>
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+ .head {
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+ color: orange;
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+ }
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+
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+ .aa {
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+ color: red;
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+ }
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+
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+ .bb {
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+ font-style: italic;
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+ }
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+
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+ .cc {
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+ text-decoration: underline;
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+ }
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+
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+ .dd {
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+ background: #ff0;
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+ }
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+
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+ .ee {
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+ background: #00f;
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+ }
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+ </style>
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+ <!-- <link rel="stylesheet" href="./css/b.css" precedence="high">
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+ <link rel="stylesheet" href="./css/a.css" precedence="low"> -->
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+</head>
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+
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+<body>
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+ <div id="root"></div>
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+ <script type="text/babel">
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+
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+ const news = 'aa';
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+ const isActive = false;
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+ const other = ['aa', 'cc', isActive ? 'dd' : 'ee']
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+ const element = (
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+ <div>
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+ {/* 单个类名 */}
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+ <h1 className='head'>Class样式绑定</h1>
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+ {/* 多个类名：字符串 */}
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+ <h3 className={'aa bb'}>哈哈哈</h3>
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+ {/* 多个类名：模版字符串 */}
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+ <div className={`${news} ${isActive ? 'bb' : 'cc'}`}>大家好</div>
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+ {/* 多个类名：数组 + join() */}
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+ <div className={other.join(' ')}>endeing</div>
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+ <div className='end'>最后</div>
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+ </div>
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+ )
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+ const container = document.getElementById("root");
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+ const root = ReactDOM.createRoot(container)
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+ root.render(element);
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+ </script>
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+</body>
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+
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+</html>
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zheng