if __name__ == ‘__main__‘: msg = ‘‘‘ 1：查询 2：添加 3：删除 4：修改 5：退出 ‘‘‘ menu_dic = { ‘1‘: search, ‘2‘: add, ‘3‘: delete, ‘4‘: modify, ‘5‘: exit, } while True: print(msg) choice = input("操作>>: ").strip() if len(choice) == 0 or choice not in menu_dic:continue if choice == ‘5‘:break menu_dic[choice]()
原文：http://www.cnblogs.com/uglyliu/p/6030637.html