重置CountDown计时器

class CountDownTimer {
  constructor(duration, updateCallback, completeCallback) {
    this.duration = duration;
    this.updateCallback = updateCallback;
    this.completeCallback = completeCallback;
    this.timerId = null;
    this.remainingTime = duration;
  }

  start() {
    this.timerId = setInterval(() => {
      if (this.remainingTime <= 0) {
        clearInterval(this.timerId);
        this.completeCallback();
      } else {
        this.remainingTime -= 1000; // 每秒更新一次
        this.updateCallback(this.remainingTime);
      }
    }, 1000);
  }

  reset() {
    clearInterval(this.timerId);
    this.remainingTime = this.duration;
  }
}

// 示例使用
const timer = new CountDownTimer(60000, (remainingTime) => {
  console.log(`剩余时间: ${remainingTime / 1000} 秒`);
}, () => {
  console.log('倒计时结束');
});

timer.start();

// 重置计时器
setTimeout(() => {
  timer.reset();
  console.log('计时器已重置');
}, 30000); // 30秒后重置计时器