系统：Windows/python 2.7.11
利用BeautifulSoup库抓取页面的一些标签TAG值
再抓取一些特定属性的值
示例标签：
<cc> <div id="post_content_79076951035" class="d_post_content j_d_post_content "> 进来呀<br>都是自己喜欢的<br>拿图就走你是狗 <br><img class="BDE_Image" src="http://imgsrc.baidu.com/forum/w%3D580/sign=f4a2042b3c87e9504217f3642039531b/55f8e6cd7b899e514d1131fc44a7d933c9950db8.jpg" size="20418" height="852" width="480"> <br><img class="BDE_Image" src="http://imgsrc.baidu.com/forum/w%3D580/sign=914d48d14d36acaf59e096f44cd88d03/6a57b319ebc4b745190bbcfec9fc1e178b8215b8.jpg" size="12400" height="600" width="400"> <br><img class="BDE_Image" src="http://imgsrc.baidu.com/forum/w%3D580/sign=522fecd8bca1cd1105b672288910c8b0/6c318744ebf81a4cfbfce421d12a6059242da60a.jpg" size="21266" height="852" width="479"></div> <br> </cc>
===============================以下为代码部分==================================
#coding=utf-8 import urllib2 from bs4 import BeautifulSoup def getImg(url): html = urllib2.urlopen(url) page = html.read() soup = BeautifulSoup(page, "html.parser") for s in soup.find_all('cc'): #获取标签为cc的tag值，得到结果：[<cc>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx........</cc>,<cc>....</cc>]集合 if 'img' not in str(s): #判断，若获取的cc值里面没有img标签，则结束本次循环 continue d = s.find_all('img', attrs={'class':'BDE_Image'}) #获取标签为img，其中一个属性：class="BDE_Image" 所有数据，放进集合 lenth = len(d) #集合的个数 for i in range(lenth): print d[i].attrs['src'] #打印，属性为src的内容，机后面的http://xxxxxxxxxxxxxxxxx
url = 'http://tieba.baidu.com/p/4161148236?fr=frs' getImg(url)
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