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import re reg=r"ab+" m=re.search(reg,"acabc") print(m) reg=r"ab*" m=re.search(reg,"acabc") print(m) 结果： ＜_sre.sre_match object; span="(2," 4), match="ab"＞ ＜_sre.sre_match object; span="(2," 4), match="ab"＞
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First, write an outline for your essay, and then according to your outline, write your essay. Both your outline and your essay should be written clearly on your ANSWER SHEET.
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") _______________________________ 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")
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