这篇文章主要介绍了Python爬虫爬取百度搜索内容代码实例,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

搜索引擎用的很频繁，现在利用Python爬虫提取百度搜索内容，同时再进一步提取内容分析就可以简便搜索过程。详细案例如下：

代码如下

# coding=utf8import urllib2import stringimport urllibimport reimport random#设置多个user_agents，防止百度限制IPuser_agents = ['Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20130406 Firefox/23.0', 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0', 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533+ (KHTML, like Gecko) Element Browser 5.0', 'IBM WebExplorer /v0.94', 'Galaxy/1.0 [en] (Mac OS X 10.5.6; U; en)', 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)', 'Opera/9.80 (Windows NT 6.0) Presto/2.12.388 Version/12.14', 'Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5355d Safari/8536.25', 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1468.0 Safari/537.36', 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0; TheWorld)']def baidu_search(keyword,pn): p= {'wd': keyword} res=urllib2.urlopen(("http://pile(u'<[^>]+>') retval = p.sub("",text) return retvaldef geturl(keyword): for page in range(10): pn=page*100+1 html = baidu_search(keyword,pn) content = unicode(html, 'utf-8','ignore') arrList = getList(u"<table.*?class="result".*?>.*?</a>", content) for item in arrList: regex = u"<h3.*?class="t".*?><a.*?href="(.*?)" rel="external nofollow" rel="external nofollow" .*?>(.*?)</a>" link = getMatch(regex,item) url = link[0] #获取标题 #title = clearTag(link[1]).encode('utf8') try: domain=urllib2.Request(url) r=random.randint(0,11) domain.add_header('User-agent', user_agents[r]) domain.add_header('connection','keep-alive') response=urllib2.urlopen(domain) uri=response.geturl() print uri except: continueif __name__=='__main__': geturl('python')</a.*&#63;href="(.*?)" rel="external nofollow" rel="external nofollow" .*?></h3.*?class="t".*?></table.*?class="result".*?>

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