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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>
 
-     <!-- jsx 语法浏览器不识别 jsx => js 浏览器可识别的语言 -->
 
-     <script src="./babel.min.js"></script>
 
-     <!-- react的核心库 -->
 
-     <script src="./react.development.js"></script>
 
-     <!-- 解析react中的dom库 -->
 
-     <script src="./react-dom.development.js"></script>
 
- </head>
 
- <body>
 
-     <div id="root">
 
-     </div>
 
-     <script type="text/babel">
 
-         let root = ReactDOM.createRoot(document.getElementById("root"));
 
-         // 动态属性
 
-         let url = 'https://ts1.cn.mm.bing.net/th/id/R-C.ac133896b2735871271f35272484cfbf?rik=k0a86ZhyanNt9g&riu=http%3a%2f%2fn.sinaimg.cn%2fsinacn10114%2f600%2fw1920h1080%2f20190518%2f1372-hwzkfpv2143245.jpg&ehk=DU3HSmHLIjdJx1fj6fhR1FLcDsewKDsoKdyrELfab%2bg%3d&risl=&pid=ImgRaw&r=0';
 
-         // jsx 语法
 
-         let element = <img width='200' height='200' src={url} alt=""></img> 
 
-         root.render(element)        
 
-     </script>
 
- </body>
 
- </html>
 
 
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