python开发_tkinter_单选按钮

这篇blog主要是描述python中tkinter的单选按钮操作

下面是我做的demo

运行效果：

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代码部分：

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 from tkinter import *
 
 # This is a demo program that shows how to
 # create radio buttons and how to get other widgets to
 # share the information in a radio button.
 #
 # There are other ways of doing this too, but
 # the "variable" option of radiobuttons seems to be the easiest.
 #
 # note how each button has a value it sets the variable to as it gets hit.
 
 class Test(Frame):
     def printit(self):
         print("hi")
 
     def createWidgets(self):
 
         self.flavor = StringVar()
         self.flavor.set("chocolate")
 
         self.radioframe = Frame(self)
         self.radioframe.pack()
 
         # 'text' is the label
         # 'variable' is the name of the variable that all these radio buttons share
         # 'value' is the value this variable takes on when the radio button is selected
         # 'anchor' makes the text appear left justified (default is centered. ick)
         self.radioframe.choc = Radiobutton(
             self.radioframe, text="Chocolate Flavor",
             variable=self.flavor, value="chocolate",
             anchor=W)
         self.radioframe.choc.pack(fill=X)
 
         self.radioframe.straw = Radiobutton(
             self.radioframe, text="Strawberry Flavor",
             variable=self.flavor, value="strawberry",
             anchor=W)
         self.radioframe.straw.pack(fill=X)
 
         self.radioframe.lemon = Radiobutton(
             self.radioframe, text="Lemon Flavor",
             variable=self.flavor, value="lemon",
             anchor=W)
         self.radioframe.lemon.pack(fill=X)
 
         # this is a text entry that lets you type in the name of a flavor too.
         self.entry = Entry(self, textvariable=self.flavor)
         self.entry.pack(fill=X)
         self.QUIT = Button(self, text='QUIT', foreground='red',
                            command=self.quit)
         self.QUIT.pack(side=BOTTOM, fill=BOTH)
 
     def __init__(self, master=None):
         Frame.__init__(self, master)
         Pack.config(self)
         self.createWidgets()
 
 test = Test()
 
 test.mainloop()

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