老严要爬某网购网站的商品信息,正好我最近在学python,就一起写了一个简单的爬虫程序。
需求:某网的商品信息,包括商品名,市场价和售价
工具:python2.7.8,urllib2,re
#coding = utf-8 import urllib2 import re path = "aaa.txt" f = open(path, 'w+') for i in range(4980, 4991): print i # get webpage content url = "http://*" + str(i) + "*" page = urllib2.urlopen(url).read() # Regular matching matchTitle = re.search(r'<dt>(.*?)</dt>', page) matchMarketPrice = re.search(r'<del.*?>(.*?)</del>', page) matchCurrentPrice = re.search(r'<b>(.*?)</b>', page) # save result if matchTitle and matchMarketPrice and matchCurrentPrice: f.write(matchTitle.group(1) + '\t' + matchMarketPrice.group(1) + '\t' + matchCurrentPrice.group(1) + '\n') f.close()
部分结果显示:
欧莱雅奇焕光感粉嫩透亮修颜霜30ml ¥120.00 109.00 欧莱雅复颜洁面乳125ml ¥130.00 105.00 欧莱雅复颜抗皱紧致滋润眼霜15ml ¥210.00 179.00 欧莱雅复颜清漾柔肤水175ml ¥160.00 138.00