Tkinter——Pop-up dialogs——（1）tkMessageBox

　　tkMessageBox中含有8种弹出窗口。各窗口调用格式如下：

answer = tkMessageBox.function(title, message, options)

参数说明：

　　function：弹出窗口类型。详见示例代码的 msg_boxes 列表。

　　title：弹出窗口标题。

　　message：弹出信息，可以“\n”换行。

　　options： [ default = ...  ] [ icon = ... ]  [ parent = ... ]

返值：

—————————————————————————————————————————————————

——	OK | Yes | Retry	No	Cancel	Close
askokcancel	True	——	False	False
askretrycancel	True	——	False	False
askyesno	True	False	——	——
askyesnocancel	True	False	None	None
askquestion	u'yes'	u'no'	——	——
showerror	ok	——	——	ok
showinfo	ok	——	——	ok
showwarning	ok	——	——	ok

—————————————————————————————————————————————————
注： Close 列表示不选择给定选项，点右上角的“X”关闭弹窗时的返值。2种弹窗无法如此关闭。

示例代码如下：

import Tkinter as tk
import tkMessageBox as mb

msg_boxes = ['askokcancel', 'askquestion', 'askretrycancel', 'askyesno', 'askyesnocancel', 'showerror', 'showinfo', 'showwarning']

def demo0():
answer = mb.askokcancel(msg_boxes[0], 'Hello world')
print answer

def demo1():
answer = mb.askquestion(msg_boxes[1], 'Hello world')
print answer

def demo2():
answer = mb.askretrycancel(msg_boxes[2], 'Hello world')
print answer

def demo3():
answer = mb.askyesno(msg_boxes[3], 'Hello world')
print answer

def demo4():
answer = mb.askyesnocancel(msg_boxes[4], 'Hello world')
print answer

def demo5():
mb.showerror(msg_boxes[5], 'Hello world')

def demo6():
mb.showinfo(msg_boxes[6], 'Hello world')

def demo7():
mb.showwarning(msg_boxes[7], 'Hello world')

root = tk.Tk()

btn0 = tk.Button(root, text=msg_boxes[0], width=20, command=demo0)
btn0.pack()
btn1 = tk.Button(root, text=msg_boxes[1], width=20, command=demo1)
btn1.pack()
btn2 = tk.Button(root, text=msg_boxes[2], width=20, command=demo2)
btn2.pack()
btn3 = tk.Button(root, text=msg_boxes[3], width=20, command=demo3)
btn3.pack()
btn4 = tk.Button(root, text=msg_boxes[4], width=20, command=demo4)
btn4.pack()
btn5 = tk.Button(root, text=msg_boxes[5], width=20, command=demo5)
btn5.pack()
btn6 = tk.Button(root, text=msg_boxes[6], width=20, command=demo6)
btn6.pack()
btn7 = tk.Button(root, text=msg_boxes[7], width=20, command=demo7)
btn7.pack()

root.mainloop()