# tkinter实现菜单功能
from tkinter import *
from PIL import Image, ImageTk
 
class Window(Frame):
 
  def __init__(self, master= None):
 
    Frame.__init__(self, master)
    self.master = master
    self.init_window()
 
  def init_window(self):
 
    self.master.title("第一个窗体")
 
    self.pack(fill=BOTH, expand=1)
 
    # 实例化一个Menu对象，这个在主窗体添加一个菜单
    menu = Menu(self.master)
    self.master.config(menu=menu)
 
    # 创建File菜单，下面有Save和Exit两个子菜单
    file = Menu(menu)
    file.add_command(label='Save')
    file.add_command(label='Exit', command=self.client_exit)
    menu.add_cascade(label='File',menu=file)
 
    # 创建Edit菜单，下面有一个Undo菜单
    edit = Menu(menu)
    edit.add_command(label='Undo')
    edit.add_command(label='Show Image',command=self.showImg)
    edit.add_command(label='Show Text',command=self.showTxt)
    menu.add_cascade(label='Edit',menu=edit)
    
 
  def client_exit(self):
    exit()
 
  def showImg(self):
    load = Image.open('pic.jpg') # 我图片放桌面上
    render= ImageTk.PhotoImage(load)
 
    img = Label(self,image=render)
    img.image = render
    img.place(x=0,y=0)
 
  def showTxt(self):
    text = Label(self, text='GUI图形编程')
    text.pack()
 
root = Tk()
root.geometry("400x300")
app = Window(root)
root.mainloop()