#coding:utf8

import url_manager, html_downloader, html_parser, html_outputer

class SpiderMain(object):
??? def _init_(self):
?? ??? ?self.urls = url_manager.UrlManager()
?? ??? ?self.downloader = html_downloader.HtmlDownloader()
?? ??? ?self.parser = html_parser.HtmlParser()
?? ??? ?self.outputer =? html_outputer.HtmlOutputer()

?? ?def craw(self, root_url):
?? ??? ?count = 1
?? ??? ?self.urls.add_new_url(root_url)
?? ??? ?while self.urls.has_new_url():
?? ??? ??? ?try:
?? ??? ??? ??? ?new_url = self.urls.get_new_url()
?? ??? ??? ??? ?print 'craw %d : %s ' % (count,new_url)
?? ??? ??? ??? ?html_cont = self.downloader.download(new_url)
?? ??? ??? ??? ?new_urls, new_data = self.parser.parse(new_url, html_cont)
?? ??? ??? ??? ?self.urls.add_new_urls(new_urls)
?? ??? ??? ??? ?self.outputer.collect_data(new_data)

?? ??? ??? ??? ?if count == 100:
?? ??? ??? ??? ??? ?break;

?? ??? ??? ??? ?count = count + 1
?? ??? ??? ?except:
?? ??? ??? ??? ?print 'craw failed'

?? ??? ?self.outputer.output_html()

if __name__=="__main__":
??? root_url = "http://baike.baidu.com/view/21087.htm"
??? obj_spider = SpiderMain()
??? obj_spider.craw(root_url)

一直說沒有craw屬性。。檢查了好久的拼寫感覺沒錯。。縮進也檢查了。。求教。。謝謝