求大神指点

[怪兽爱美食✘]

老师留的作业，电脑小白心痛啊～Python编程

[u014567183]

#!/usr/bin/python3
import random
def init():
	guize = print_menu()
	if(guize=='1'):
		jiafa()
	else:
		print('未实现的运算规则^_^')
	init()	
def print_menu():
    menu = {
        1: "加法",
        2: "减法",
        3: "乘法",
        4: "除法"
    }
    print('运算规则菜单：') #打印菜单
    for i in menu:
        print(i, menu[i])
    guize = input('请输入运算规则前面的数字:')
    return guize
def jiafa():
	a = random.randint(1,9)
	b = random.randint(1,9)
	c = input(str(a)+'+'+str(b)+'=')
	if(int(c)==a+b):
		print('回答正确')
	else:
		print(a+b)
		print('回答错误')
init()