print(av_catalog)
'''
info = {
'stu1101': "TengLan Wu",
'stu1102': "LongZe Luola",
'stu1103': "XiaoZe Maliya",
}
for i in info:
print(i,info[i])
for k,v in info.items():
print(k,v)
# b = {
# 'stu1101':"Alex",
# 1:3,
# 2:5
# }
# info.update(b)
# print(info)
# c = dict.fromkeys([6,7,8],[1,{"name":"alex"},444])
# print(c)
# c[7][1]['name'] = "Jack Chen" #共用一个内存
# print(c)
# print(info.items())
# print(info)
# # print(info["stu1101"])
# print(info.get('stu1103'))
#
# print('stu1103' in info) #info.has_key("1103") in py2.x
# info["stu1101"] = "武藤兰"
# info["stu1104"] = "CangJingkong"
#del
# del info["stu1101"]
# info.pop("stu1101")
# info.popitem()
# print(info)
十、三级菜单
#!/usr/bin/env python
# -*- coding:utf-8 -*-
data = {
'北京':{
"昌平":{
"沙河":["oldboy","test"],
"天通苑":["链家地产","我爱我家"]
},
"朝阳":{
"望京":["奔驰","陌陌"],
"国贸":{"CICC","HP"},
"东直门":{"Avent","飞信"},
},
"海淀":{},
},
'山东':{
"德州":{},
"青岛":{},
"济南":{}
},
'广东':{
"东莞":{},
"常熟":{},
"佛山":{},
},
}
exit_flag = False
while not exit_flag:
for i in data:
print(i)
choice = input("选择进入1>>:")
if choice in data:
while not exit_flag:
for i2 in data[choice]:
print("\t",i2)
choice2 = input("选择进入2>>:")
if choice2 in data[choice]:
while not exit_flag:
for i3 in data[choice][choice2]:
print("\t", i3)
choice3 = input("选择进入3>>:")
if choice3 in data[choice][choice2]:
for i4 in data[choice][choice2][choice3]:
print("\t\t",i4)