1.對於python3中對話方塊的使用：

注意python3中相對於python2有很多的變化，其中一些包的名字是改變了，比圖Tkinter變為 tkinter，而對於對話方塊在python2中可以通過匯入tkMessageBox來使用，比如：
tkMessageBox.showifo("messagebox","this is a messagebox")

在python3中此模組變為了messagebox，我們只需要匯入tkinter.messagebox就可以使用（tk = Tk()）：

tk.messagebox.showinfo("messagebox","this is a messagebox")

參考一下案例：

from tkinter import *
import tkinter.messagebox

class MainWindow:

    def buttonListener1(self,event):
        tkinter.messagebox.showinfo("messagebox","this is button 1 dialog")
    def buttonListener2(self,event):
        tkinter.messagebox.showinfo("messagebox","this is button 2 dialog")
    def buttonListener3(self,event):
        tkinter.messagebox.showinfo("messagebox","this is button 3 dialog")
    def buttonListener4(self,event):
        tkinter.messagebox.showinfo("messagebox","this is button 4 dialog")

    def  __init__(self):
        self.frame = Tk()
        
        self.button1 = Button(self.frame,text = "button1",width = 10,height = 5)
        self.button2 = Button(self.frame,text = "button2",width = 10,height = 5)
        self.button3 = Button(self.frame,text = "button3",width = 10,height = 5)
        self.button4 = Button(self.frame,text = "button4",width = 10,height = 5)

        self.button1.grid(row = 0,column = 0,padx = 5,pady = 5)
        self.button2.grid(row = 0,column = 1,padx = 5,pady = 5)
        self.button3.grid(row = 1,column = 0,padx = 5,pady = 5)
        self.button4.grid(row = 1,column = 1,padx = 5,pady = 5)

        self.button1.bind("<ButtonRelease-1>",self.buttonListener1)
        self.button2.bind("<ButtonRelease-1>",self.buttonListener2)
        self.button3.bind("<ButtonRelease-1>",self.buttonListener3)
        self.button4.bind("<ButtonRelease-1>",self.buttonListener4)

        self.frame.mainloop()

window = MainWindow()
 

以上通過定義類的方式來顯示了一個圖形介面（其中值得注意的是self這個引數）

python3模組變化地址參考：

python控制元件與佈局參考地址：

二用python寫的圖形介面例子：

from tkinter import *

class MainWindow:
    def __init__(self):
        self.frame = Tk()

        self.label_name = Label(self.frame,text = "name:")
        self.label_age = Label(self.frame,text = "age:")
        self.label_sex = Label(self.frame,text = "sex:")

        self.text_name = Text(self.frame,height = "1",width = 30)
        self.text_age = Text(self.frame,height = "1",width = 30)
        self.text_sex = Text(self.frame,height = "1",width = 30)

        self.label_name.grid(row = 0,column = 0)
        self.label_age.grid(row = 1,column = 0)
        self.label_sex.grid(row = 2,column = 0)

        self.button_ok = Button(self.frame,text = "ok",width = 10)
        self.button_cancel = Button(self.frame,text = "cancel",width = 10)

        self.text_name.grid(row = 0,column = 1)
        self.text_age.grid(row = 1,column = 1)
        self.text_sex.grid(row = 2,column = 1)
        
        self.button_ok.grid(row = 3,column = 0)
        self.button_cancel.grid(row = 3,column = 1)

        self.frame.mainloop()

frame = MainWindow()