页面未在react上更新

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

const handleClick = () => {
  setCount(prevCount => prevCount + 1); // 使用前一个状态值
};

const [, forceUpdate] = useState();

const handleClick = () => {
  // 更新状态
  setCount(prevCount => prevCount + 1);
  // 强制重新渲染
  forceUpdate({});
};

useEffect(() => {
  // 副作用代码
}, [dependency]); // 确保依赖项正确

// 错误示例
this.state.count = this.state.count + 1;

// 正确示例
this.setState(prevState => ({ count: prevState.count + 1 }));

import React, { useState, useEffect } from 'react';

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

  useEffect(() => {
    console.log('Count updated:', count);
  }, [count]);

  return (
    <div>
      <p>You clicked {count} times</p>
      <button onClick={() => setCount(count + 1)}>
        Click me
      </button>
    </div>
  );
}

export default Counter;