python实现弹窗倒计时

在Python中，你可以使用`tkinter`库来创建简单的图形用户界面，包括弹窗和倒计时功能。以下是一个简化的示例，展示如何在一个窗口上显示倒计时：

import tkinter as tk
from time import sleep

def countdown(t):
    while t > 0:
        mins, secs = divmod(t, 60)
        timer.config(text=f"{mins:02d}:{secs:02d}")
        root.update()
        sleep(1)
        t -= 1

def start_countdown():
    global t
    t = int(entry.get())
    if t <= 0:
        return
    thread = threading.Thread(target=countdown, args=(t,))
    thread.start()

root = tk.Tk()
root.geometry("250x100")
timer = tk.Label(root, font=("Arial", 48), anchor="center")
timer.pack(pady=20)

start_button = tk.Button(root, text="开始倒计时", command=start_countdown)
start_button.pack()

entry = tk.Entry(root)
entry.pack()

root.mainloop()