劉任昌python視窗Toplevel與Tk

from tkinter import * #從tkinter函式庫輸入所有函式,檔案'window001.py'
import time           #412單元延續數入time套件
def delete():         #增加自訂函數def delete()
    List[int(n.get())-1].destroy() #destroy破壞視窗List[索引]
    win.config(bg='#1099ff')
    b1=Label(win,text='劉任昌',font='Arial 100 bold',bg='#10ff10').pack()
x=('林','青','霞','💩','\U0001F609','\U0001F4ff') #建立元祖tuple名為x,0,1,2,3,4,5
List = []                   #建立串列list名為List
win=Tk() #建構子constrctor Tk, Toplevel
win.geometry('400x200+800+0')
win.title('劉帥哥的視窗')
n = StringVar(win) #類別變數
n.set('刪除')
op1 = OptionMenu(win,n,1,2,3,4,5,6).pack(side=LEFT)
bu1 = Button(win,text='刪除選取視窗',command=delete,font='20',bg='blue',fg='white')
bu1.pack()
for i in range(6):
    window = Toplevel()
    window.title('劉帥哥第%d個視窗' % (i+1))
    window.geometry('300x300+%d+%d' % (i*300,i*100))
    window.config(bg='#f90')
    b1=Label(window,text=x[i],font='Arial 200 bold').pack()
    window.update()
    time.sleep(0.3)
    List.append(window) #新增指令:將視窗存在串列List

mainloop()