1 #_author_: edison 2 #date: 2017/8/10 3 china = { 4 '广东':{ 5 '广州':{'海珠':'红烧螃蟹','越秀':'蚝蛎煎蛋'}, 6 '深圳':{'南山':'油焖大虾','罗湖':'小炒肉'}, 7 '珠海':{'金湾':'清蒸螃蟹','斗门':'火爆腰花'}, 8 }, 9 '四川':{ 10 '成都':{'双流':'双流老妈兔头','郫县':'七婆串串'}, 11 '绵阳':{'三台':'三台丰水梨','梓州':'梓州板鸭'}, 12 '南充':{'西充':'狮子糕','蓬安':'姚麻花'} 13 }, 14 '云南':{ 15 '丽江':{'永胜':'板鸭','华坪':'青椒肉丝'}, 16 '昆明':{'盘龙':'干锅','五华':'火锅'}, 17 '玉溪':{'红塔':'红塔山','江川':'云烟'} 18 } 19 } 20 21 22 back_flag = False #返回标志位 23 quit_flag = False #退出标志位 24 while not back_flag and not quit_flag: 25 for key in china: 26 print(key) 27 choice = input('输入你喜欢的省会:').strip() #strip() 方法用于移除字符串头尾指定的字符(默认为空格) 28 if choice in china: 29 while not back_flag and not quit_flag: #让程序停在第二层 30 for key2 in china[choice]: 31 print(key2) 32 choice2 = input('输入你喜欢的城市(b返回上一级,q退出):').strip() 33 if choice2 == 'b': 34 back_flag = True 35 if choice2 == 'q': 36 quit_flag = True 37 if choice2 in china[choice]: 38 while not back_flag and not quit_flag: 39 for key3 in china[choice][choice2]: 40 print(key3) 41 choice3 = input('输入你喜欢的区县(b返回上一级,q退出):').strip() 42 if choice3 == 'b': 43 back_flag = True 44 if choice3 == 'q': 45 quit_flag = True 46 if choice3 in china[choice][choice2]: 47 while not back_flag and not quit_flag: 48 for key4 in china[choice][choice2][choice3]: 49 print(key4) 50 choice4 = input('(b返回上一级,q退出):').strip() 51 if choice4 == 'b': 52 back_flag = True 53 if choice4 == 'q': 54 quit_flag = True 55 else: 56 back_flag = False 57 else: 58 back_flag = False 59 else: 60 back_flag = False