倒计时

复制from datetime import datetime, timezone
import time

# 目标时间：2025-12-31 23:59:59 UTC
target = datetime(2025, 12, 31, 23, 59, 59, tzinfo=timezone.utc)

# 每秒更新一次倒计时
while True:
    now = datetime.now(timezone.utc)
    delta = target - now
    if delta.total_seconds() <= 0:
        print("倒计时结束！")
        break
    # 格式化为 天:时:分:秒
    days = delta.days
    hours, remainder = divmod(delta.seconds, 3600)
    minutes, seconds = divmod(remainder, 60)
    print(f"{days}天 {hours:02d}:{minutes:02d}:{seconds:02d}", end="\r")
    time.sleep(1)

复制package main

import (
	"fmt"
	"time"
)

func main() {
	// 目标时间：2025-12-31 23:59:59 UTC
	target := time.Date(2025, 12, 31, 23, 59, 59, 0, time.UTC)

	for {
		now := time.Now().UTC()
		delta := target.Sub(now)
		if delta <= 0 {
			fmt.Println("倒计时结束！")
			break
		}
		days := int(delta.Hours()) / 24
		hours := int(delta.Hours()) % 24
		minutes := int(delta.Minutes()) % 60
		seconds := int(delta.Seconds()) % 60
		fmt.Printf("\r%d天 %02d:%02d:%02d", days, hours, minutes, seconds)
		time.Sleep(1 * time.Second)
	}
}

复制// 目标时间：2025-12-31 23:59:59 UTC
const target = new Date('2025-12-31T23:59:59Z');

function updateCountdown() {
  const now = new Date();
  const diff = target - now;
  
  if (diff <= 0) {
    console.log('倒计时结束！');
    clearInterval(interval);
    return;
  }
  
  const days = Math.floor(diff / (1000 * 60 * 60 * 24));
  const hours = Math.floor((diff % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
  const minutes = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
  const seconds = Math.floor((diff % (1000 * 60)) / 1000);
  
  console.log(`${days}天 ${String(hours).padStart(2, '0')}:${String(minutes).padStart(2, '0')}:${String(seconds).padStart(2, '0')}`);
}

const interval = setInterval(updateCountdown, 1000);
updateCountdown();