本文實例講述了python妹子圖簡單爬蟲實現(xiàn)方法。分享給大家供大家參考。具體如下:
#!/usr/bin/env python#coding: utf-8import urllibimport urllib2import osimport reimport sys#顯示下載進度def schedule(a,b,c): ''''' a:已經(jīng)下載的數(shù)據(jù)塊 b:數(shù)據(jù)塊的大小 c:遠(yuǎn)程文件的大小 ''' per = 100.0 * a * b / c if per > 100 : per = 100 print '%.2f%%' % per#獲取html源碼def getHtml(url): page = urllib.urlopen(url) html = page.read() return html#下載圖片def downloadImg(html, num, foldername): picpath = '%s' % (foldername) #下載到的本地目錄 if not os.path.exists(picpath): #路徑不存在時創(chuàng)建一個 os.makedirs(picpath) target = picpath+'/%s.jpg' % num myItems = re.findall('<p><a href="http:////www.mzitu.com/.*?" ><img src="(.*?)" alt=".*?" /></a></p>',html,re.S) print 'Downloading image to location: ' + target urllib.urlretrieve(myItems[0], target, schedule)#正則匹配分頁def findPage(html): myItems = re.findall('<span>(/d*)</span>', html, re.S) return myItems.pop()#正則匹配列表def findList(html): myItems = re.findall('<h2><a title="(.*?)" target="_blank">.*?</a></h2>', html, re.S) return myItems#總下載def totalDownload(modelUrl): listHtml5 = getHtml(modelUrl) listContent = findList(listHtml) for list in listContent: html = getHtml('http://www.mzitu.com/' + str(list[0])) totalNum = findPage(html) for num in range(1, int(totalNum)+1): if num == 1: url = 'http://www.mzitu.com/' + str(list[0]) html5 = getHtml(url) downloadImg(html5, str(num), str(list[1])) else: url = 'http://www.mzitu.com/' + str(list[0]) + '/'+str(num) html5 = getHtml(url) downloadImg(html5, str(num), str(list[1]))if __name__ == '__main__': listHtml = getHtml('http://www.mzitu.com/model') #這是其中一個模塊的url,可以添加不同的模塊url從而達(dá)到整站爬取。 for model in range(1, int(findPage(listHtml))+1): if model == 1: modelUrl = 'http://www.mzitu.com/model' totalDownload(modelUrl) else: modelUrl = 'http://www.mzitu.com/model/page/' + str(model) totalDownload(modelUrl) print "Download has finished."希望本文所述對大家的Python程序設(shè)計有所幫助。
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