props基本使用

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

14_props基本使用

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>props基本使用</title>
  </head>

  <body>
    <!-- 准备好一个"容器" -->
    <div id="test1"></div>
    <div id="test2"></div>
    <div id="test3"></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">
      // 创建组件
      class Person extends React.Component {
        render() {
          // console.log(this); Person组件的实例对象 context,props, refs, state
          const { name, age, sex } = this.props;
          return (
            <ul>
              <li>姓名：{name}</li>
              <li>性别：{sex}</li>
              <li>年龄：{age + 1}</li>
            </ul>
          );
        }
      }

      // 渲染组件到页面
      ReactDOM.render(
        <Person name="jerry" age={19} sex="男" />,
        document.getElementById("test1")
      );

      ReactDOM.render(
        <Person name="tom" age={18} sex="女" />,
        document.getElementById("test2")
      );

      const p = { name: "老刘", age: 18, sex: "女" };
      // ReactDOM.render(<Person name={p.name} age={p.age} sex={p.sex}/>,document.getElementById('test3'))
      ReactDOM.render(<Person {...p} />, document.getElementById("test3"));
    </script>
  </body>
</html>
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