Python数据分析之获取双色球历史信息的方法示例

#!/usr/bin/python
# -*- coding:UTF-8 -*-
#coding:utf-8
#author:levycui
#date:20160513
#Description:双色球信息收集
import urllib2
from bs4 import BeautifulSoup  #采用BeautifulSoup
import os
import re
#伪装成浏览器登陆,获取网页源代码
def getPage(href):
  headers = {
    'User-Agent':'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6'
  }
  req = urllib2.Request(
    url = href ,
    headers = headers
  )
  try:
    post = urllib2.urlopen(req)
  except urllib2.HTTPError,e:
    print e.code
    print e.reason
  return post.read()
#初始化url 双色球首页
url = 'http://kaijiang.zhcw.com/zhcw/html/ssq/list_1.html'
#===============================================================================
#获取url总页数
def getPageNum(url):
  num =0
  page = getPage(url)
  soup = BeautifulSoup(page)
  strong = soup.find('td',colspan='7')
  # print strong
  if strong:
    result = strong.get_text().split(' ')
    # print result
    list_num = re.findall("[0-9]{1}",result[1])
    # print list_num
    for i in range(len(list_num)):
      num = num*10 + int(list_num[i])
    return num
  else:
    return 0
#===============================================================================
#获取每页双色球的信息
def getText(url):
  for list_num in range(1,getPageNum(url)):  #从第一页到第getPageNum(url)页
    print list_num #打印下页码
    href = 'http://kaijiang.zhcw.com/zhcw/html/ssq/list_'+str(list_num)+'.html' #调用新url链接
    # for listnum in len(list_num):
    page = BeautifulSoup(getPage(href))
    em_list = page.find_all('em')  #匹配em内容
    div_list = page.find_all('td',{'align':'center'})  #匹配 <td align=center>这样的内容
    #初始化n
    n = 0
    #将双色球数字信息写入num.txt文件
    fp = open("num.txt" ,"w")
    for div in em_list:
      emnum1 = div.get_text()
      # print emnum1
      text = div.get_text()
      text = text.encode('utf-8')
      #print title
      n=n+1
      if n==7:
        text = text + "\n"
        n=0
      else:
        text = text + ","
      fp.write(str(text))
    fp.close()
    #将日期信息写入date.txt文件
    fp = open("date.txt" ,"w")
    for div in div_list:
      text = div.get_text().strip('')
      # print text
      list_num = re.findall('\d{4}-\d{2}-\d{2}',text)
      list_num = str(list_num[::1])
      list_num = list_num[3:13]
      if len(list_num) == 0:
        continue
      elif len(list_num) > 1:
        fp.write(str(list_num)+'\n')
    fp.close()
    #将num.txt和date.txt文件进行整合写入hun.txt文件中
    #格式如下：
    #('2016-05-03', '09,12,24,28,29,30,02')
    #('2016-05-01', '06,08,13,14,22,27,10')
    #('2016-04-28', '03,08,13,14,15,30,04')
    #
    fp01 = open("date.txt","r")
    a=[]
    for line01 in fp01:
      a.append(line01.strip('\n'))
      # print a
    fp01.close()
    fp02 = open("num.txt","r")
    b=[]
    for line02 in fp02:
      b.append(line02.strip('\n'))
      # print b
    fp02.close()
    fp = open("hun.txt" ,"a")
    for cc in zip(a,b): #使用zip方法合并
      print cc
      fp.write(str(cc) + '\n')
    fp.close()
#===============================================================================
if __name__=="__main__":
  pageNum = getPageNum(url)
  print pageNum
  getpagetext = getText(url)
  print getpagetext

('2015-03-03', '09,11,16,18,23,24,10')
('2015-03-01', '08,09,10,13,29,30,01')
('2015-02-26', '04,07,10,16,23,25,10')