The Dormouse's story
Once upon a time there were three little sisters; and their names wereElsie,Lacie andTillie;and they lived at the bottom of a well.
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'''soup=BeautifulSoup(doc,"lxml")______________________________________for tag in tags: print(tag["href"])结果是:http://example.com/elsiehttp://example.com/laciehttp://example.com/tillie缺失的语句是: