python学习笔记1——python 中 Tkinder 使用常见问题

        在使用Tkinder开发GUI时候需要import Tkinder，但是不同的版本的python使用上面有所区别，其中2.x和3.x中import就有所区别，相关的modules名称也有区别，使用时候需要加以注意，否则会出现错误！

python 2.x （本人安装的是2.7.12）中Tkinder import需要大写，如下：

import tkinter

或者

from tkinter import *

python 3.x （本人安装的是3.5.1）中的Tkinder使用小写，如下：

import tkinter

或者

from tkinter import *

        以上两个版本的Tkinder Modules也有所不同，如下所示：

python 2.7.12 如下：

Other modules that provide Tk support include:

ScrolledText

Text widget with a vertical scroll bar built in.

tkColorChooser

Dialog to let the user choose a color.

tkCommonDialog

Base class for the dialogs defined in the other modules listed here.

tkFileDialog

Common dialogs to allow the user to specify a file to open or save.

tkFont

Utilities to help work with fonts.

tkMessageBox

Access to standard Tk dialog boxes.

tkSimpleDialog

Basic dialogs and convenience functions.

Tkdnd

Drag-and-drop support for Tkinter. This is experimental and should become deprecated when it is replaced with the Tk DND.

turtle

Turtle graphics in a Tk window. 

python 3.5.1如下：

Other modules that provide Tk support include:

tkinter.scrolledtext

Text widget with a vertical scroll bar built in.

tkinter.colorchooser

Dialog to let the user choose a color.

tkinter.commondialog

Base class for the dialogs defined in the other modules listed here.

tkinter.filedialog

Common dialogs to allow the user to specify a file to open or save.

tkinter.font

Utilities to help work with fonts.

tkinter.messagebox

Access to standard Tk dialog boxes.

tkinter.simpledialog

Basic dialogs and convenience functions.

tkinter.dnd

Drag-and-drop support for tkinter. This is experimental and should become deprecated when it is replaced with the Tk DND.

turtle

Turtle graphics in a Tk window

示例：

#_*_coding:utf-8_*_from Tkinter import *import tkSimpleDialog as dlimport  tkMessageBox as mb# python 3.5 # from tkinter import *# import tkinter.simpledialog as dl# import  tkinter.messagebox as mbroot = Tk()w = Label(root,text="Lable title")w.pack() #使其循环显示，而不是显示一次就消失了mb.showinfo("welcome","welcome to ktinter")guess = dl.askinteger("Number","Enter a number!")output = 'this is a output message'mb.showinfo("output",output)

结果：

以上是python2.x和python3.x在Tkinder上的小小区别，使用时候需要注意，否则会报错！其它相关区别可以参考各个python版本对应的documentation！