__author__ = '曾是土木人' # -*- coding: utf-8 -*- #采集SERP搜索结果标题 import urllib2 from bs4 import BeautifulSoup import time #写文件 def WriteFile(fileName,content):     try:         fp = file(fileName,"a+")         fp.write(content + "\r")         fp.close()     except:         pass #获取Html源码 def GetHtml(url):     try:         req = urllib2.Request(url)         response= urllib2.urlopen(req,None,3)#设置超时时间         data    = response.read().decode('utf-8','ignore')     except:pass     return data #提取搜索结果SERP的标题 def FetchTitle(html):     try:         soup = BeautifulSoup(''.join(html))         for i in soup.findAll("h3"):             title = i.text.encode("utf-8")　　　　　　 　　　　　　　if any(str_ in title for str_ in ("北京","厦门")): 　　　　　　　　  continue             else:                 print title             WriteFile("Result.txt",title)     except:         pass keyword = "58同城" if __name__ == "__main__":     global keyword     start = time.time()     for i in range(0,8):         url = "http://www.baidu.com/s?wd=intitle:"+keyword+"&rn=100&pn="+str(i*100)         html = GetHtml(url)         FetchTitle(html)         time.sleep(1)     c = time.time() - start     print('程序运行耗时:%0.2f 秒'%(c))