python 分析并下载网页中的图片(代码分享)

from urllib import request
import threading
from time import sleep,ctime
from html import parser
 
def downjpg( filepath,FileName ="default.jpg" ):
    try:
        web = request.urlopen( filepath)
        print("访问网络文件"+filepath+" ")
        jpg = web.read()
        DstDir="E:image"
        print("保存文件"+DstDir+FileName+" ")
        try:
            File = open( DstDir+FileName,"wb" )
            File.write( jpg)
            File.close()
            return
        except IOError:
            print("error ")
            return
    except Exception:
        print("error ")
        return
 
def downjpgmutithread( filepathlist ):
    print("共有%d个文件需要下载"%len(filepathlist))
    for file in filepathlist:
        print( file )
    print("开始多线程下载")
    task_threads=[] #存储线程
    count=1
    for file in filepathlist:
        t= threading.Thread( target=downjpg,args=(file,"%d.jpg"%count) )
        count=count+1
        task_threads.append(t)
    for task in task_threads:
        task.start()
    for task in task_threads:
        task.join() #等待所有线程结束
    print("线程结束")
 
class parserLinks( parser.HTMLParser):
    filelist=[]
    def handle_starttag(self,tag,attrs):
        if tag == 'img':
            for name,value in attrs:
                if name == 'src':
                    print( value)
                    self.filelist.append(value)
                    #print( self.get_starttag_text() )
    def getfilelist(self):
        return self.filelist
 
def main(WebUrl):
    #globals flist
    if __name__ == "__main__":
        lparser = parserLinks()
        web = request.urlopen( WebUrl )
        #context= web.read()
        for context in web.readlines():
            _str="%s"%context
            try:
                lparser.feed( _str)
            except parser.HTMLParseError:
                #print( "parser error")
                pass
        web.close()
        imagelist= lparser.getfilelist()
        downjpgmutithread( imagelist)       
       
        #downjpgmutithread( flist)
 
#WebUrl="http://www.jb200.com/" #要抓取的网页链接，默认保存到e盘
WebUrl="http://www.jb200.com.com/article/11111.html"
 
main(WebUrl)