tkinter中的单选按钮

import tkinter as tk

def show_selection():
    selected_option = radio_var.get()
    print(f"当前选中：{selected_option}")

# 创建主窗口
root = tk.Tk()
root.title("单选按钮示例")

# 创建 StringVar 变量，用于存储单选按钮的值
radio_var = tk.StringVar()

# 创建单选按钮选项
option1 = tk.Radiobutton(root, text="选项1", variable=radio_var, value="A", command=show_selection)
option2 = tk.Radiobutton(root, text="选项2", variable=radio_var, value="B", command=show_selection)
option3 = tk.Radiobutton(root, text="选项3", variable=radio_var, value="C", command=show_selection)

# 将单选按钮添加到主窗口中
option1.pack()
option2.pack()
option3.pack()

# 启动主事件循环
root.mainloop()

+------+-------+
| 选项1 |  □    |
+------+-------+
| 选项2 |  □    |
+------+-------+
| 选项3 |  □    |
+------+-------+