python3 三級菜單-基礎版

-- coding:utf-8 --

data = {
"北京":{
"東城區":{
"安定門":["國子監","孔廟","鐘樓"],
"建國門":["金寶街","長安街","西街"],
"朝陽門":["東四","新街口","孚王府"],
},
"朝陽區":{
"和平街":["顧家莊","櫻花社區","東街"],
"八里屯":["慈壽寺","定慧寺","前門"],
"三里屯":["夜店","工體","後海酒吧"],
},
"海淀":{
"中關村":["海龍","鼎好","科貿"],
"五道口":["清華","北大","人大"],
"航天橋":["公主墳","古城","長安街"],
},
}
}

exit_flag =False

while not exit_flag:
for i in data:
print(i)

choice = input("選擇1")
if choice in data:
    while not exit_flag:
        for i2 in  data[choice]:
            print("\t",i2)
        choice2 = input("選擇2")
        if choice2 in data[choice]:
            while not exit_flag:
                for i3 in data[choice][choice2]:
                    print("\t\t",i3)
                choice3 = input("選擇3")
                if choice3 in data[choice][choice2]:
                    for i4 in data[choice][choice2][choice3]:
                        print("\t\t\t",i4)
                    choice4 = input("最後一層，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