Python获取央视节目单的实现代码

#! /usr/bin/python # -*- coding: utf-8 -*- import urllib,re,unicodedata,string,sys from time import strftime,localtime channel={"1":"CCTV-1","2":"CCTV-2","3":"CCTV-3","4":"CCTV-4亚洲",   "5":"CCTV-4欧洲","6":"CCTV-4美洲","7":"CCTV-5","8":"CCTV-6",   "9":"CCTV-7","10":"CCTV-8","11":"CCTV-9","12":"CCTV-10",   "13":"CCTV-11","14":"CCTV-12","15":"CCTV新闻","16":"CCTV少儿",   "17":"CCTV音乐","18":"CCTV_E","19":"CCTV-F","20":"CCTV-高清"} if __name__=="__main__":   print "@@"   print "@@ 你可以在命令行后输入数字(1-20)来选择频道 "   print "@@ 通过在命令行后键入help获取频道列表"   print "@@"   if len(sys.argv)==1:     Select="8"   else:     if sys.argv[1]=="help":       for i in range(len(channel)):         print "%3d : %11s" % (i+1, channel["%s" % (i+1)]),         if(i%4 == 3):           print ""       sys.exit(0)     if string.atoi(sys.argv[1])>20 or string.atoi(sys.argv[1])<=0:       print "Out of Range. Please Select 1-20."       sys.exit(0)     else:       Select=sys.argv[1]   print '正在获取节目单，请稍后...'   date=strftime('%Y%m%d',localtime())   response = urllib.urlopen("http://tv.cctv.com/soushi/28/0"+Select+"/"+date+".shtml")   Result=response.read()   #list=re.findall(r"<div class='tlb_right'><div class='l'>(.+?)<script",Result,re.S)   list=re.findall(r"上午节目(.+?)<script",Result,re.S)   list2=re.findall(r"<li>(.+?)</li>",list[0],re.S)   morning=[]   afternoon=[]   listnum=0   for i in range(len(list2)):     i=re.sub('<.+?>','',list2[i])     if string.atoi(i[:2])>=12: #将上午的节目于下午的节目分开       afternoon.append(i)     else:       morning.append(i)   if len(morning)>len(afternoon):     listnum=len(morning)   else:     listnum=len(afternoon)   print "-"*80,   print " "*13+"上午节目"+" "*26+"下午节目"   print " "*14+"========"+" "*26+"========"   for i in range(listnum):     if(i<len(morning)):       print "%-4s %-29s" %(morning[i][:5],morning[i][5:]),     else:       print " "*35,     if(i<len(afternoon)):       print "%-4s %-30s" %(afternoon[i][:5],afternoon[i][5:])     else:       print " "*37   print "-"*80,   print " "*24,strftime("%Y年%m月%d日"),   print "%s 节目单" %channel[Select]