python - 默认情况下不检查 Tkinter 单选按钮

Question

我很茫然。默认情况下，我的单选按钮不会检查，即使我遵循了各种单选按钮教程。不确定我做错了什么，我将默认单选按钮设置为 False 按钮​​。

这是我的代码:

import tkinter as tk
import tkinter.ttk as ttk
from tkinter.colorchooser import *


class ExampleView(tk.Frame):
    def __init__(self, *args, **kwargs):
        tk.Frame.__init__(self, *args, **kwargs)

        """ create StringVars for our shape fill radio button group """
        shape_fill_status = tk.StringVar()

        """ create radio button group for turning off shape fill """
        shape_fill_frame = tk.Frame(self)
        shape_fill_label = tk.Label(shape_fill_frame, text="Fill Shape: ",  anchor="w")
        shape_fill_label.pack(side=tk.LEFT, padx = 10)
        shape_fill_false = tk.Radiobutton(shape_fill_frame, text = "False", variable = shape_fill_status, value = 0)

        shape_fill_true = tk.Radiobutton(shape_fill_frame, text = "True", variable = shape_fill_status, value = 1)
        shape_fill_status.set(0)
        shape_fill_false.pack(side=tk.LEFT, padx = 10)
        shape_fill_true.pack(side=tk.LEFT, padx = 10)
        shape_fill_frame.grid(row=0, column=0, stick="w")

        self.grid_columnconfigure(0, weight=1)

if __name__ == "__main__":
    root = tk.Tk()
    view = ExampleView(root)
    view.pack(side="top", fill="both", expand=True)
    root.wm_geometry("400x200")
    root.mainloop()

这是我的 tkinter 小部件的样子:

Answer 1

您正在使用局部变量来存储StringVar。一旦 __init__ 完成，变量就会被销毁。

将所有地方的 shape_fill_status 更改为 self.shape_fill_status。