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我正在创建一个设置窗口,我无法弄清楚如何为一个单选按钮设置一个默认值。我希望窗口以黑色开头,如果用户没有点击任何一个按钮,'B'值仍然会被返回。谢谢您的帮助。在tkinter python中给一个单选按钮设置一个默认值
import tkinter
from tkinter import ttk
class Test:
def __init__(self):
self.root_window = tkinter.Tk()
#create who goes first variable
self.who_goes_first = tkinter.StringVar()
#black radio button
self._who_goes_first_radiobutton = ttk.Radiobutton(
self.root_window,
text = 'Black',
variable = self.who_goes_first,
value = 'B')
self._who_goes_first_radiobutton.grid(row=0, column=1)
#white radio button
self._who_goes_first_radiobutton = ttk.Radiobutton(
self.root_window,
text = 'White',
variable = self.who_goes_first,
value = 'W')
self._who_goes_first_radiobutton.grid(row=1, column=1)
def start(self) -> None:
self.root_window.mainloop()
if __name__ == '__main__':
game = Test()
game.start()