# pip install beautifulsoup4from bs4 import BeautifulSouphtml_doc = """The Dormouse's story 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.
"""# 1.转类型 bs4.BeautifulSoup'soup = BeautifulSoup(html_doc, 'lxml')# print(type(soup))# 2. 解析数据# Tag 标签对象 bs4.element.Tag'result = soup.head# 注释的内容 类型 'bs4.element.Comment'result = soup.p.stringprint(type(result))result = soup.a# 内容 Navigablestring 'bs4.element.NavigableStringresult = soup.a.string# 属性result = soup.a['href']