python str.title( )和str.istitle( )

本文介紹python中字元串的兩個内建函數，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

（完）