python 문자열 사용 방법 요약

>>> x=1
>>> type(x) is types.IntType
True
>>> y='aa'
>>> type(y) is types.StringType
True
>>> z=[]
>>> type(z) is types.ListType
True
>>> a={}
>>> type(a) is types.DictType
True

>>> "a"+"b"
'ab'
>>> "a"*4
'aaaa'
>>> "-".join(['a','b','c'])
'a-b-c'
>>> "".join(['a','b','c'])
'abc'
>>> 'a,b,c'.split(',')
['a', 'b', 'c']
>>> 'a-b-c'.split('-')
['a', 'b', 'c']
>>> aa="""fan
... te
... fei"""
>>> aa.splitlines()                  #    ，      
['fan', 'te', 'fei']
>>> print ''.join(aa.splitlines())
fantefei
>>> print ''.join(aa.splitlines(True))#    ，    True ，     
fan
te
fei
>>> "abcde".startswith('ab'),"abcde".endswith('de') #        
(True, True)
>>> "abc".upper(),"ABC".lower() #           
('ABC', 'abc')
>>> "abcabc".find('bc') #          bc   
1
>>> "abcabc".find('bc',2)#          bc   
4
>>> "abcabc".find('bcd')  #           -1
-1
>>> "abcabc".index('bc')  #index    find    
1
>>> "abcabc".index('bc',2)
4
>>> "abcabc".index('bcd')  #   index             
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: substring not found
>>> "abcabc".rindex('bc')  #     bc        
4
>>> "abcabc".rindex('bc')  #     bc        
4
>>> "#say you hello yaaaaass#".strip('#') #     #，             、\r、

'say you hello yaaaaass'
>>> "#say you hello yaaaaass#".lstrip('#') #      
'say you hello yaaaaass#'
>>> "#say you hello yaaaaass#".rstrip('#') #      
'#say you hello yaaaaass'
>>> "#say you hello yaaaaass#".strip('#say')  #     ['#','s','a','y']    ，             
' you hello '
>>> "#say you hello yaaaaass#".strip('#say ')  #     ['#','s','a','y',' ']    ，             
'ou hello'
>>> "#saiy you hello yaaaaass#".strip('#say ')  #   i            
'iy you hello'
 ：lstrip、rstrip strip     
>>> "abcabcabc".replace('bc','BC')  #replace  ，              
'aBCaBCaBC'
>>> "abcabcabc".replace('bc','BC',1)  #    
'aBCabcabc'
>>> "abcabcabc".replace('bc','BC',2)  #  2 
'aBCaBCabc'
>>> '123'.ljust(5,'0')  #5 ，  ，   0   
'12300'
>>> '123'.rjust(5,'0')  #5 ，  ，   0   
'00123'
>>> '123'.center(5,'*') #5 ，  ，   *   
'*123*'
>>> '123'.center(2,'*') #      (2)          ，     
'123'
>>> '123'.zfill(5)     #zfill    ，    0  
'00123'
>>> '123'.zfill(2)
'123'