作业
三级菜单程序
history =[menu] while True: for item in history[-1]: print(item) choice = input("input your choice :").strip() if choice == ‘b‘ and len(history) > 1: history.pop() elif choice == ‘q‘: break else: if choice in history[-1]: history.append(history[-1][choice])
时间: 2024-10-08 09:51:40