Python编程从入门到实践 课后习题7-4、7-5、7-6 记录练习的答案 7-4 披萨配料 question = "你想加什么配料?" question += "\n (Enter 'quit' 结束循环)\n" topping = "" while topping != 'quit': topping = input(question) if topping == 'quit': break elif topping == 'apple': print("没有") else: print(