图形界面

'图形界面'
from tkinter import *
import tkinter.messagebox as messagebox
class (Frame):
    def __init__(self, master=None):
        Frame.__init__(self, master)
        self.pack()
        self.createWidgets()
    def createWidgets(self):
        self.helloLabel = Label(self, text='Hello World')
        self.helloLabel.pack()
        self.quitButton = Button(self, text='Quit', command=self.quit)
        
        self.quitButton.pack()
        self.nameInput = Entry(self)
        self.nameInput.pack()
        self.alertButton = Button(self,text='发送',command = self.hello)
        self.alertButton.pack()
    def hello(self):
        name = self.nameInput.get() or 'world'
        messagebox.showinfo('Message','Hello, %s'%name)
app = Applicaction()
# 设置标题
app.master.title('Hello World')
# 主消息循环
app.mainloop()