三级菜单优化程序

Posted 2020-11-17 lindong0602

#!usrinenvpython

# -*- coding:utf - 8  -*9

data = 

{
    ‘北京‘:{
        ‘海淀‘:{
            ‘五道口‘:{
                ‘soho‘:{},
                ‘网易‘:{},
                ‘google‘:{}
            },
            ‘中关村‘:{
                ‘爱奇艺‘:{},
                ‘汽车之家‘:{},
                ‘youku‘:{},
            },
            ‘上地‘:{
                ‘百度‘:{},
            },
        },
        ‘昌平‘:{
            ‘沙河‘:{
                ‘老男孩‘:{},
                ‘北航‘:{},
            },
            ‘天通苑‘:{},
            ‘回龙观‘:{},
        },
        ‘朝阳‘:{},
        ‘东城‘:{},
    },
    ‘上海‘:{
        ‘闵行‘:{
            "人民广场":{
                ‘炸鸡店‘:{}
            }
        },
        ‘闸北‘:{
            ‘火车战‘:{
                ‘携程‘:{}
            }
        },
        ‘浦东‘:{},
    },
    ‘山东‘:{},
}

exit_flag = Flase 

while not exit_flag:
    for i in data:
       print(i)
    choice = input("选择进入>>:")
    if choice in data:
       while not exit_flag:
           for i2 in data[choice]:
              print("	",i2)
           choice2 = input("选择进入>>:")
           if choice2 in data[choice]:
              while not exit_flag:
                   for i3 in data[choice] [choice2]:
                      print("		",i3)
                   choice3= input("选择进入>>:")
                   if choice3 in data[choice] [choice2]:
                      while not exit_flag:
                           for i4 in data[choice] [choice2] [choice3]:
                              print("		",i4)
                           choice4=input("最后一层,按b返回>>:")
                           if choice4 =="b"
                              pass 
                           elif choice4 == "q"
                                exit_flag = True
                           if choice3 =="b"
                              break
                           elif choice3 == "q" 
                                exit_flag = True
                if choice2 == "b"
                   break 
                elif choice2 =="q"
                     exit_flag =True