import tkinter as tk
import random
import threading
import time
def dow():
 window = tk.Tk()
 width=window.winfo_screenwidth()
 height=window.winfo_screenheight()
 a=random.randrange(0,width)
 b=random.randrange(0,height)
 window.title('中秋节快乐')
 window.geometry("200x50"+"+"+str(a)+"+"+str(b))
 tk.Label(window,
  text='中秋节快乐！', # 标签的文字
  bg='Red',  # 背景颜色
  font=('楷体', 17),  # 字体和字体大小
  width=15, height=2 # 标签长宽
  ).pack() # 固定窗口位置
 window.mainloop()
 
threads = []
for i in range(100):#需要的弹框数量
 t = threading.Thread(target=dow)
 threads.append(t)
 time.sleep(0.1)
 threads[i].start()