python实现爬虫下载漫画示例

代码如下:
#!/usr/bin/python3.2
import os,socket
import urllib
import urllib.request,threading,time
import re,sys
global manhuaweb,weburl,floder,chapterbegin,currentthreadnum,threadcount,mutex,mutex2

weburl=''
floder=''
chapterbegin=0
currentthreadnum=0
threadcount=6

if len(sys.argv)>=3:
  weburl=sys.argv[1]
  floder=sys.argv[2]
else:
    print("usag: downloadmanhua weburl floder chapterbegin=0 threadnnum=6")
    sys.exit(0)
if len(sys.argv)>=4:
  chapterbegin=int(sys.argv[3])
if len(sys.argv)>=5:
  threadcount=(int)(sys.argv[4])

def jin(i,jinzhi):
        finalans=""
        answer=i%jinzhi
        i=int(i/jinzhi)
        if answer>9:
                finalans=finalans+chr(ord('a')+(answer-10))
        else:
                finalans=finalans+str(answer)
        if i!=0:
                finalans=jin(i,jinzhi)+finalans
        return finalans
def urlparse(p,a,c,k):
        d={}
        e=lambda c:     jin(c,36)
        if 1:
                while c:
                        c=c-1
                        if not k[c]:
                                d[jin(c,36)]=jin(c,36)
                        else:
                                d[jin(c,36)]=k[c]
                k=[lambda e:d[e]]
                e=lambda c:'//w+'
                c=1
        newstr=""