多人交互游戏限时秒杀

// 假设秒杀开始时间为2023-10-10T10:00:00Z
const秒杀开始时间 = new Date('2023-10-10T10:00:00Z').getTime();

function updateCountdown() {
    const now = new Date().getTime();
    const distance = 秒杀开始时间 - now;

    if (distance < 0) {
        clearInterval(interval);
        document.getElementById('countdown').innerHTML = "秒杀已结束";
        return;
    }

    const days = Math.floor(distance / (1000 * 60 * 60 * 24));
    const hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
    const minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
    const seconds = Math.floor((distance % (1000 * 60)) / 1000);

    document.getElementById('countdown').innerHTML = `${days}天 ${hours}小时 ${minutes}分 ${seconds}秒`;
}

const interval = setInterval(updateCountdown, 1000);

import threading

库存 = 100
锁 = threading.Lock()

def handle_order():
    global 库存
    with 锁:
        if 库存 > 0:
            库存 -= 1
            # 处理订单逻辑
            print("订单成功")
        else:
            print("库存不足")

# 模拟多个并发请求
threads = []
for _ in range(120):
    thread = threading.Thread(target=handle_order)
    threads.append(thread)
    thread.start()

for thread in threads:
    thread.join()