BeautifulSoup子库是属于哪个库 。

X

B

<span>

C

</span>

D

" soup=BeautifulSoup(doc,"lxml") print(soup.prettify()) tags=soup.select("div ~ p") for tag in tags: print(tag) print() tags=soup.select("div + p") for tag in tags: print(tag) 结果是

A、

B

;

D

B、

B

;

C

C、

C

;

D

D、

D

;

C

The Dormouse's story

</book></book></book></book></book></bookstore></selector></selector></selector></selector></selector></selector></class></class></selector></selector></class></selector></selector></selector></selector></bookstore></body></html></title></generator></selector></selector></selector></selector></bookstore></body></html></title></book></bookstore></body></html>

Once upon a time there were three little sisters; and their names were Elsie, Lacie and Tillie; and they lived at the bottom of a well.

...

''' soup=BeautifulSoup(doc,"lxml") ___________________________________ for tag in tags: print(tag) 查找文档中class="sister"的元素,缺失语句是：

A、tags=soup.find(name=None,attrs={"class":"sister"})

B、tags=soup.find(attrs={"class":"sister"})

C、tags=soup.find_all(attrs={"class":"sister"})

D、tags=soup.find_all(name=None,attrs={"class":"sister"})

The Dormouse's story

Once upon a time there were three little sisters; and their names were Elsie, Lacie and Tillie; and they lived at the bottom of a well.

...

''' soup=BeautifulSoup(doc,"lxml") ___________________________________ for tag in tags: print(tag) 查找文档中class="sister"的元素,缺失语句是：

A、tags=soup.find(name=None,attrs={"class":"sister"})

B、tags=soup.find(attrs={"class":"sister"})

C、tags=soup.find_all(attrs={"class":"sister"})

D、tags=soup.find_all(name=None,attrs={"class":"sister"})

The Dormouse's story

Once upon a time there were three little sisters; and their names were Elsie, Lacie and Tillie; and they lived at the bottom of a well.

...

''' soup=BeautifulSoup(doc,"lxml") _______________________________ print(tag) 程序结果找到class="story"的

元素,缺失的语句是

A、tag=soup.find("p",attrs={"class":"story"})

B、tag=soup.find("p",attr={"class":"story"})

C、tag=soup.find("p")

D、tag=soup.find("p",class="story")

The Dormouse's story

Once upon a time there were three little sisters; and their names were Elsie, Lacie and Tillie; and they lived at the bottom of a well.

...

''' soup=BeautifulSoup(doc,"lxml") ______________________________________ for tag in tags: print(tag["href"]) 结果是： http://example.com/elsie http://example.com/lacie http://example.com/tillie 缺失的语句是：

A、tags=soup.select("pa")

B、tags=soup.select("p[] a")

C、tags=soup.select("p[class]>a")

D、tags=soup.select("p[class='story'] a")

A、numpy

B、beautifulsoup4

C、scrapy

D、scipy

The Dormouse's story

Once upon a time there were three little sisters; and their names were Elsie, Lacie and Tillie; and they lived at the bottom of a well.

...

''' soup=BeautifulSoup(doc,"lxml") ______________________ for tag in tags: _________________ 缺失的语句是：

A、tags=soup.find_all("a");print(tag.href)

B、tags=soup.find_all("a");print(tag("href"))

C、tags=soup.find("a");print(tag["href"]);

D、tags=soup.find("a");print(tag.("href"))