Tkinter学习笔记-1

Tkinter

python标准GUI包，提供了Tk GUI工具箱的OO接口

每个组件继承自Widget类

GUI由包含子组件的顶层组件构成

Frame类作为顶层组件

标签

显示文本、图片、提示信息

通过Label类创建

# SimpleLabel.py
# Label demonstration

from Tkinter import *

class LabelDemo( Frame ):
    """ Demonstrate Labels"""

    def __init__(self):
        """ Create three Labels and pack them """

        Frame.__init__( self )  # initialize Frame object

        # frame files all available space
        self.pack( expand = YES, fill = BOTH)
        self.master.title( "Labels" )

        self.Label1 = Label( self, text = "Label with text" )

        # resize frame to accommodate Label
        self.Label1.pack()

        self.Label2 = Label( self, text = "Labels with text and bitmap" )

        # insert Label against left side of frame
        self.Label2.pack( side = LEFT )

        # using default bitmap image as label
        self.Label3 = Label( self, bitmap = "warning" )
        self.Label3.pack( side = LEFT )


demo = LabelDemo()

demo.mainloop()   # starts event loop