import collections
#导入collections用于导入有序字典
dic = collections.OrderedDict()
#有序字典
dic["河南"] = {
"南阳":["邓州","南召","西峡","桐柏","新野","方城","镇平","宛城区"],
"洛阳":["老城区","孟津县","宜阳县","伊川县","洛宁县","栾川县","洛龙区"],
}
dic["湖南"] = {
"长沙":["开福区","望城区","岳麓区","芙蓉区","宁乡县","天心区","星沙"],
"娄底":["涟源","双峰","冷水江市"],
}
dic["广东"] = {
"广州":["越秀区","花都区","天河区","增城区"],
"深圳":["罗湖区","福田区","宝安区","盐田区","龙岗区","龙华区","坪山区"],
}
active = True
#标识符
d1 = collections.OrderedDict()
#定义一个空的字典,用户存放一级菜单内容
d2 = collections.OrderedDict()
#定义一个空的有序字典,用于存放二级菜单
d3 = []
#定义一个空的列表,用于存放三级菜单
while active:
#进入一级菜单
print("省的编号 省的名称")
for index1,province in enumerate(dic.keys(),1):
print(" %s %s "%(index1,province))
d1[index1] = province
#把省的编号和对应的名称放到字典中
num1 = input("请输入你要查看省的编号:")
if num1.isdigit():
#判断用户输入的是否是数字化编号
if int(num1) > len(d1) or int(num1) < 1:
print("对不起,你输入的编号有误,请重新输入")
else:
print(d1[int(num1)])
else:
if num1 == "q":
active = False
else:
print("您输入的不是数字编号,请输入正确的数字编号!")
while active:
#键入二级菜单
print("市的编号 市的名称")
for index2,city in enumerate(dic[d1[int(num1)]].keys(),1):
print(" %s %s " % (index2, city))
d2[index2] = city
num2 = input("请输入你要查看市的编号:")
if num2.isdigit():
if int(num2) > len(d2) or int(num2) < 1:
print("您输入的市的编号不对,请重新输入!")
else:
print(d1[int(num1)]," ",d2[int(num2)])
else:
if num2 == "b":
#如果用户输入的是b退出当前循环,调到上一次循环
break
elif num2 == "q":
active = False
else:
print("您输入的编号有误,请输入正确的数字编号")
while active:
#进入三级菜单
print("县区编号 县区名称")
d3 = dic[d1[int(num1)]][d2[int(num2)]]
for index3,place in enumerate(d3,1):
print(" %s %s " % (index3, place))
num3 = input("请输入你要查询的县/区的编号:")
if num3.isdigit():
#判断用户输入的字符串是否是数字格式的
if int(num3) > len(d3) or int(num3) < 1:
print("您输入的查询编号超过范围,请重新输入!")
else:
print(d1[int(num1)], " ", d2[int(num2)]," ",d3[int(num3)-1])
else:
if num3 == "b":
break
elif num3 == "q":
active = False
else:
print("您输入的查询编号格式不对,请重新输入!")