BeautifulSoup中标签的contens和children属性的区别

这二者的区别是一个列表，一个是迭代器
it=soup.body.contents
type(it)
Out[116]: list

所以对应children对象而言，可以使用next()函数

it=soup.body.children
next(it)
Out[106]: '\n'
next(it)
Out[107]: 
The Dormouse's story
next(it)
Out[108]: '\n'
next(it)
Out[109]: 
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.
next(it)
Out[110]: '\n'
next(it)
Out[111]: 
...
next(it)
Out[112]: '\n'