python str.title( )和str.istitle( )

本文介绍python中字符串的两个内建函数，str.title( )和str.istitle( )

>>> help(str.title)

Help on method_descriptor:

title(...)

S.title() -> string

Return a titlecased version of S, i.e.
words start with uppercase

characters, all remaining cased characters have lowercase.

>>> 'love python!'.title()

'Love Python!'

>>> 'a strange dog'.title()

'A Strange Dog'

>>> help(str.istitle)

Help on method_descriptor:

istitle(...)

S.istitle() -> bool

Return True if S is a titlecased string and there is at least one

character in S, i.e. uppercase characters may only follow uncased

characters and lowercase characters only cased ones. Return False

otherwise.

>>> ''.istitle()

False

>>> 'Love python!'.istitle()

False

>>> 'Love Python!'.istitle()

True

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