python实现省市区字典查询

#!/usr/bin/env python# coding=utf-8'''所使用的文件格式是110000  北京市  0代号  名称  上级代号'''# 判断输入的是否是exit或者quit def if_quit(cmd_str):    if cmd_str == "quit" or cmd_str == "exit":        print "感谢您的使用"        return quit # 列出所有的省def list_all_province():    with open("./pcd_dic/province.txt",'r')as f1:        content = f1.readlines()        print "代号       名称"        for i in content:                   print "%s       %s" %(i.split()[0],i.split()[1])        return content#输入要查看的省def input_province_choice(province_content):    user_choice_province = raw_input("输入您要查看的省（代码或者名称）：")    #if_quit(user_choice_province)    province_result = ""    for i in province_content:        if user_choice_province == i.split()[0] or user_choice_province == i.split()[1]:            province_result = i            print "您要查看的是 %s" %province_result.split()[1]            city_content = list_choice_province_city("./pcd_dic/city.txt",province_result.split()[0])            input_city_choice(city_content)    if province_result == "":        print "您输入有误，请重新输入"        input_province_choice(province_content)#列出所有市  def list_choice_province_city(filepath,result_code):    with open(filepath,'r') as f2:        city_content = f2.readlines()        print "包含有以下市："        for i in city_content:            if i.split()[2] == result_code:                print " %s       %s" %(i.split()[0],i.split()[1])                   continue        return city_content#输入要选择的市def input_city_choice(city_content):    user_choice_city = raw_input("输入您要查看的市（代码或者名称）：")    #if_quit(user_choice_city)    city_result = ""    for i in city_content:        if user_choice_city == i.split()[0] or user_choice_city == i.split()[1]:            city_result = i            print "您要查看的是 %s" %city_result.split()[1]            list_choice_city_district("./pcd_dic/district.txt",city_result.split()[0])            break    if city_result == "":        print "您输入城市有误请重新输入"        input_city_choice(city_content)# 列出选择市的县区def list_choice_city_district(filepath,result_code):    with open(filepath,'r') as f:        content = f.readlines()        print "包含有以下区县："        for i in content:            if i.split()[2] == result_code:                print "     %s       %s" %(i.split()[0],i.split()[1])                continueprint "下面是中国的省份直辖市，输入代号或者省市可查看更多。"while True:    a=list_all_province()    input_province_choice(a)    quit_or_continue = raw_input("是否要继续查询？yes/no")    if quit_or_continue == "yes":        continue    else:        print "感谢您的使用"        break