import tkinter as tk
base=tk.Tk()
radio_value=tk.IntVar()
radio_value.set(1)
lunch={0:"A套餐",1:"B套餐",2:"C套餐",3:"D套餐"}
tk.Radiobutton(base,text=lunch[0],variable=radio_value,value=0).pack()
tk.Radiobutton(base,text=lunch[1],variable=radio_value,value=1).pack()
tk.Radiobutton(base,text=lunch[2],variable=radio_value,value=2).pack()
tk.Radiobutton(base,text=lunch[3],variable=radio_value,value=3).pack()
def buy():
	value=radio_value.get()
	print(lunch[value])


tk.Button(base,text="點菜",command=buy).pack()
base.mainloop()