Python3小白初体验

三层循环嵌套，以后优化

data = {
    "北京":{
            "a":{
                "小白":"",
                "小红":""
                },
            "b":{
                "小黑":"",
                "小其":""
                }
            },
    "广东":{
            "c":{
                "小明":"",
                "小新":""
                },
            "d":{
                "小孩":"",
                "小小":""
                }
        },
    "广西":{
            "e":{
                "小蝶":"",
                "小费":""
                },
            "f":{
                "小高":"",
                "小p":""
                }
        },
    }
tt_flag = False
#三层循环
print(data["广西"]["e"]["小蝶"])
while not tt_flag:
    for i in data:
        print(i)
    chioce = input("请选择进入：")
    if chioce in data:
        while not tt_flag:
            for j in data[chioce]:
                print(j)
            chioce2 = input("请选择进入:")
            if chioce2 in data[chioce]:
                while not tt_flag:
                    for k in data[chioce][chioce2]:
                        print(k)

                    chioce3 = input("请输入进入：")
                    if chioce3 in data[chioce][chioce2]:
                        while not tt_flag:
                            for l in data[chioce][chioce2][chioce3]:
                                print(l)
                            choice4 = input("最后一层，按c返回：按q退出")
                            if choice4 == "c":
                                break
                            elif choice4 == "q":
                                tt_flag = True

                    if chioce3 == "c":
                        break
                    elif chioce3 == "q":
                        tt_flag = True

            if chioce2 == "c":
                break
            elif chioce2 == "q":
                tt_flag = True
    if chioce == "c":
        break