#coding=utf-8 
import urllib2 
 
url1 = 'http://m.weather.com.cn/data3/city.xml' 
content1 = urllib2.urlopen(url1).read() 
provinces = content1.split(',') 
print content1 # 输出content1可以查看全部省份代码 
result = '' 
url = 'http://m.weather.com.cn/data3/city%s.xml' 
for p in provinces: 
  p_code = p.split('|')[0] 
  url2 = url % p_code 
  content2 = urllib2.urlopen(url2).read() # 输出content2可以查看此省份下所有城市代码 
  cities = content2.split(',') 
  print content2 
  for c in cities: 
    c_code = c.split('|')[0] 
    url3 = url % c_code 
    content3 = urllib2.urlopen(url3).read() 
    print content3 #content3是此城市下所有地区代码 
    districts = content3.split(',') 
    for d in districts: # 对于每个地区，我们把它的名字记录下来，然后再发送一次请求，得到它的最终代码： 
      d_pair = d.split('|') 
      d_code = d_pair[0] # 
      if 5 == len(d_code): 
        continue 
        temp=[d_code] 
        temp.insert(4,0) 
        d_code ="".join(temp) 
      name = d_pair[1] # 名字 
      url4 = url % d_code 
      content4 = urllib2.urlopen(url4).read() 
      print content4 
      code = content4.split('|')[1] 
      line = "%s:%s\n" % (name, code) 
      result += line 
      print name + ':' + code 
f = file('./city', 'w') 
f.write(result) 
f.close() 

# -*- coding: utf-8 -*- 
import urllib2 
import json 
city = {} 
f =file('city','r') 
src = f.readlines() 
for line in src: 
  line = line.split('\n')[0] 
  name = line.split(':')[0] 
  code = line.split(':')[1] 
  city[name] = code 
cityname = raw_input('请输入你要查询的城市名称:\n') 
citycode = city.get(cityname) 
print cityname 
if citycode: 
  try: 
    url = ('http://www.weather.com.cn/data/cityinfo/%s.html' % citycode) 
    content = urllib2.urlopen(url).read() 
    data = json.loads(content) 
    result = data['weatherinfo'] 
    str_temp = ('%s\n%s ~ %s') % (result['weather'],result['temp1'],result['temp2']) 
    print str_temp 
  except: 
    print '查询失败' 
else: 
  print '没有找到该城市'