Python小应用之火车路线查询

def getrain(f,t):
"""获取火车路线，参数是from和to"""
     url ="http://wap.huochepiao.com/cx/"

     form = urllib.urlencode([('chufa',f),('daoda',t)])

     req = urllib2.Request(url)

     fd = urllib2.urlopen(req,form)
     lines = fd.readlines()
     cars = str(lines[16])
     cars = cars.replace("<b>","")
     cars = cars.replace("</b>","")
     cars = cars.replace("<br />","")
     print cars.decode("utf-8")
     lines = lines[20:-6]
     tmp = ""
     for l  in lines:
          tmp = tmp + l
     tmp = tmp.replace("<br />","")
     tmp = tmp.replace("<li>","")
     tmp2 = tmp.split("\r\n\r\n")
     tmp3 = []
     for i in tmp2:
          i = i.strip()
          if i == "":
               continue
          pos1 = i.rfind("=") + 1
          pos2 = i.rfind('"')
          cc = "车次:%s" % i[pos1:pos2]
          i = i[i.find("\n",2)+1:]
          i = cc + "\n" + i + "\r\n"
          tmp3.append(i)
     end = ""
     for s in tmp3:
          end = end + s + "\n"
     end = cars + end + "\n"
     return end

 

拿过去就可以用， 前面需要：

import string

import urllib

import urllib2

import sys

 

主要思路：

1、就是找个wap查询火车的网站，发现还不错

2、抓包，看到post的数据

3、然后在模拟提交，下载

 4、解析，输出

 

拿过去就可以用，输出已经做过处理