Traceback (most recent call last):? File "spider_main.py", line 37, in <module>??? obj_spider.craw(root_url)AttributeError: 'SpiderMain' object has no attribute 'craw'import url_manager, html_downloader, html_parser, html_outputerclass 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)謝謝謝謝！找了半天了。。也沒(méi)找到什么拼寫(xiě)錯(cuò)誤。。縮進(jìn)也都檢查了。。。