三级菜单 问题及改进

标签：--   continue   this   退出   while   print   pop   lis   pen   

#
# lla={
#     ‘sheng‘:{
#         ‘shi‘:{
#             ‘xian‘:{
#                 ‘qu‘:{},
#                 ‘qu‘:{},
#                 ‘qu‘:{},
#                 ‘qu‘:{},
#                     },
#             ‘xian‘:{‘qu‘:{},},
#             ‘xian‘:{‘qu‘:{},},
#                },
#         ‘shi‘:{‘xian‘:{‘qu‘:{},},},
#         ‘shi‘:{‘xian‘:{‘qu‘:{},},},
#     },
#     ‘sheng‘:{‘shi‘:{‘xian‘:{‘qu‘:{},},},},
#      }
#
#

ll={
    ‘sheng‘:{
        ‘shi1‘:{
            ‘xian1‘:{
                ‘qu1‘:{},
                ‘qu2‘:{},
                ‘qu3‘:{},
                    },
            ‘xian2‘:{
                ‘qu21‘:{},
                ‘qu21‘:{},
                ‘qu23‘:{},
                    },
               },
        ‘shi2‘:{
            ‘xian21‘:{
                ‘qu211‘:{},
                ‘qu212‘:{},
                ‘qu213‘:{},
                    },
            ‘xian22‘:{
                ‘qu221‘:{},
                ‘qu222‘:{},
                ‘qu223‘:{},
                    },
               },
    },
    ‘sheng2‘: {
        ‘shi1‘: {
            ‘xian1‘: {
                ‘qu1‘: {},
                ‘qu2‘: {},
                ‘qu3‘: {},
            },
            ‘xian2‘: {
                ‘qu21‘: {},
                ‘qu21‘: {},
                ‘qu23‘: {},
            },
        },
        ‘shi2‘: {
            ‘xian21‘: {
                ‘qu211‘: {},
                ‘qu212‘: {},
                ‘qu213‘: {},
            },
            ‘xian22‘: {
                ‘qu221‘: {},
                ‘qu222‘: {},
                ‘qu223‘: 333,
            },
        },
    },
}


while True:
    for sheng in ll:
        print(sheng)
    sheng = input("choice sheng :").strip()
    if sheng in ll:
        print(sheng)
        while True:
            for shi in ll[sheng]:
                    print(shi)
            shi = input("choice shi :").strip()
            if shi in ll[sheng]:
                while True:
                     for xian in ll[sheng][shi]:
                         print(xian)
                     xian = input(‘choice xian:‘).strip()
                     if xian in ll[sheng][shi]:
                         while True:
                             for xian in ll[sheng][shi][xian]:
                                 print(xian)
                             print(‘this is the last one‘)

2--------------------改进-----------------------------------------

ll={
    ‘sheng‘:{
        ‘shi1‘:{
            ‘xian1‘:{
                ‘qu1‘:{},
                ‘qu2‘:{},
                ‘qu3‘:{},
                    },
            ‘xian2‘:{
                ‘qu21‘:{},
                ‘qu21‘:{},
                ‘qu23‘:{},
                    },
               },
        ‘shi2‘:{
            ‘xian21‘:{
                ‘qu211‘:{},
                ‘qu212‘:{},
                ‘qu213‘:{},
                    },
            ‘xian22‘:{
                ‘qu221‘:{},
                ‘qu222‘:{},
                ‘qu223‘:{},
                    },
               },
    },
    ‘sheng2‘: {
        ‘shi1‘: {
            ‘xian1‘: {
                ‘qu1‘: {},
                ‘qu2‘: {},
                ‘qu3‘: {},
            },
            ‘xian2‘: {
                ‘qu21‘: {},
                ‘qu21‘: {},
                ‘qu23‘: {},
            },
        },
        ‘shi2‘: {
            ‘xian21‘: {
                ‘qu211‘: {},
                ‘qu212‘: {},
                ‘qu213‘: {},
            },
            ‘xian22‘: {
                ‘qu221‘: {},
                ‘qu222‘: {},
                ‘qu223‘: 333,
            },
        },
    },
}

layer = ll
parent_list = []

while True:
    for key in layer:
        print(key)
    xia = input("input a name:").strip()
    if len(xia) == 0: continue
    if xia in layer:
        parent_list.append(layer)
        layer = layer[key]
    elif xia == ‘b‘:
        if parent_list:
            layer = parent_list.pop()
    elif xia == ‘q‘:
         exit(‘退出程序！‘)
    else:
        print(‘please input a right str!‘)

三级菜单 问题及改进

标签：--   continue   this   退出   while   print   pop   lis   pen   

原文地址：https://www.cnblogs.com/nfyx/p/8806833.html