import tkinter as tk, random, threading, 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('庆年')

    window.geometry('400x100'+'+'+str(a)+'+'+str(b))

    # tk.Label(window,text='小胡你好呀!',bg='pink',font=('楷体',23),width=40,height=15).pack()

    tk.Label(window,text='骂人专用，你是个**!',bg='pink',font=('楷体',23),width=40,height=15).pack()

    window.mainloop()

threads=[]

for i in range(10):

    t=threading.Thread(target=dow)

    threads.append(t)

    time.sleep(0.5)

    threads[i].start()