from tkinter import *

def a():

b=yjb.get()

if b==3:

label1.config(text="回答正确")

else:

label1.config(text="回答错误")

top=Tk()

top.geometry("300x400")

top.title("单选题")

label1=Label(top,text="余建彬是哪国人?",bg="pink")

label1.pack()

yjb=IntVar()

radiobutton1=Radiobutton(top,text="阿富汗",variable=yjb,value=1,command=a)

radiobutton1.pack()

radiobutton2=Radiobutton(top,text="尼泊尔",variable=yjb,value=2,command=a)

radiobutton2.pack()

radiobutton3=Radiobutton(top,text="韩国",variable=yjb,value=3,command=a)

radiobutton3.pack()

radiobutton4=Radiobutton(top,text="漂亮国",variable=yjb,value=4,command=a)

radiobutton4.pack()

top.mainloop()