在同一子组件中创建子组件要素

// 父组件
import React from 'react';
import ChildComponent from './ChildComponent';

function ParentComponent() {
  return (
    <div>
      <h1>这是父组件</h1>
      <ChildComponent />
    </div>
  );
}

export default ParentComponent;

// 子组件
import React from 'react';

function ChildComponent() {
  return <p>这是子组件</p>;
}

export default ChildComponent;

// 确保导入路径正确
import ChildComponent from './ChildComponent';

// 确保传递了正确的props
<ChildComponent someProp={value} />

import React, { useState } from 'react';

function ChildComponent() {
  const [count, setCount] = useState(0);

  return (
    <div>
      <p>计数: {count}</p>
      <button onClick={() => setCount(count + 1)}>增加</button>
    </div>
  );
}