虚拟DOM的两种创建方式

Tutorial: React基础 Category: React Published: 2026-04-07 13:58:26 Views: 20 Likes: 0 Comments: 0

02_虚拟 DOM 的两种创建方式

  • 方式一：JSX
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>1_使用jsx创建虚拟DOM</title>
  </head>

  <body>
    <!-- 准备好一个"容器" -->
    <div id="test"></div>

    <!-- 引入react核心库 -->
    <script type="text/javascript" src="./js/react.development.js"></script>

    <!-- 引入react-dom, 用于支持react操作DOM -->
    <script
      type="text/javascript"
      src="./js/react-dom.development.js"
    ></script>

    <!-- 引入babel, 用于将jsx转为js -->
    <script type="text/javascript" src="./js/babel.min.js"></script>

    <script type="text/babel">
      /* 此处一定要写babel */

      //1.创建虚拟DOM
      const VDOM = (
        /* 此处一定不要写引号, 因为不是字符串 */
        <h1 id="title">
          <span>Hello,React</span>
        </h1>
      );

      //2.渲染虚拟DOM到页面
      ReactDOM.render(VDOM, document.getElementById("test"));
    </script>
  </body>
</html>
  • 方式二: JS
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>2_使用js创建虚拟DOM</title>
  </head>

  <body>
    <!-- 准备好一个"容器" -->
    <div id="test"></div>

    <!-- 引入react核心库 -->
    <script type="text/javascript" src="./js/react.development.js"></script>

    <!-- 引入react-dom, 用于支持react操作DOM -->
    <script
      type="text/javascript"
      src="./js/react-dom.development.js"
    ></script>

    <script type="text/javascript">
      //1.创建虚拟DOM
      const VDOM = React.createElement(
        "h1",
        { id: "title" },
        React.createElement("span", {}, "Hello,React")
      );

      //2.渲染虚拟DOM到页面
      ReactDOM.render(VDOM, document.getElementById("test"));
    </script>
  </body>
</html>
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