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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>
- </head>
- <body>
- <div id="root"></div>
- <!--
- vue 动态渲染 {{}} 模板语法
- react 表达式 {} 可以做运算
- -->
- <script type="text/babel">
- let rain = '下雨';
- let userName = {
- fistName:'卢',
- lastName:'星'
- }
- // const snow = <h3>明天休息,但是有可能{false + 1 + 'hello' + userName.fistName}</h3>;
- // const snow = <h3>明天休息,但是有可能{rain}</h3>;
- function getName(userName) {
- return `${userName.fistName} ${userName.lastName}`
- }
- const snow = <h4>{getName(userName)}</h4>;
- const getRoot = document.querySelector("#root");
- ReactDOM.createRoot(getRoot).render(snow);
- </script>
- </body>
- </html>
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