Python 对列表中的字符串首字母大写处理

['sDe', 'abc', 'SDF']

['Sde', 'Abc', 'Sdf']

lt = ['sDe', 'abc', 'SDF']
mp = list(map(lambda x: x[0].upper() + x[1:].lower(), lt))  # map函数
print(mp)

map(func, *iterables) --> map object

Make an iterator that computes the function using arguments from 
each of the iterables.  Stops when the shortest iterable is exhausted.

lt = ['sDe', 'abc', 'SDF']
result = [i.capitalize() for i in lt]  # 列表推导式
print(result)

def capitalize(self): # real signature unknown; restored from __doc__
        """
        S.capitalize() -> str
        
        Return a capitalized version of S, i.e. make the first character
        have upper case and the rest lower case.
        """
        return ""

lt = ['sDe', 'abc', 'SDF']
result = [i.title() for i in lt]
print(result)

def title(self): # real signature unknown; restored from __doc__
        """
        S.title() -> str
        
        Return a titlecased version of S, i.e. words start with title case
        characters, all remaining cased characters have lower case.
        """
        return ""

lt = ['sDe', 'abc', 'SDF']
result = ' '.join(lt).title().split()  # 字符串分割处理
print(result)

def join(self, iterable): # real signature unknown; restored from __doc__
        """
        S.join(iterable) -> str
        
        Return a string which is the concatenation of the strings in the
        iterable.  The separator between elements is S.
        """
        return ""