尝试使用UseEffect在react.js (日:小时:分钟:秒)中创建倒计时

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

function Countdown() {
  const [time, setTime] = useState(0);

  useEffect(() => {
    const timer = setInterval(() => {
      setTime((prevTime) => prevTime + 1);
    }, 1000);

    return () => {
      clearInterval(timer);
    };
  }, []);

  return (
    <div>
      <h1>倒计时: {time}</h1>
    </div>
  );
}