#python3.4爬网页图片### 代码批量自动下载豆瓣网首页图片:``` pythonimport urllib.requestimport retargetDir = 'D:/Photo ' #文件保存路径if __name__== '__main__': #程序运行入口 weburl = 'http://www.**.com' webheaders = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0'} req = urllib.request.Request(url=weburl, headers=webheaders) #构造请求报头 webpage = urllib.request.urlopen(req) #发送请求报头 contentBytes = webpage.read().decode('utf-8') imglist=re.findall(r'<img src="([^"]+)"', str(contentBytes)) for each in imglist: filename =targetDir+ each.split('/')[-1] urllib.request.urlretrieve(each, filename,None)```