[PYTHON/COMMON] __sub__ 함수 : - 연산자 오버로딩 사용하기

■ __sub__ 함수를 사용해 – 연산자 오버로딩을 하는 방법을 보여준다.

▶ 예제 코드 (PY)


class StringHelper:
    def __init__(self, source = None):
        self.__source = source

    def __sub__(self, removeCharacterList):
        for removeCharacter in removeCharacterList:
            self.__source = self.__source.replace(removeCharacter, "")

        return StringHelper(self.__source)

    def Remove(self, removeCharacterList):
        return self.__sub__(removeCharacterList)

    def GetString(self):
        return self.__source

helper = StringHelper("ABCDEFabcdefg")

print(helper.GetString())

helper - "ACE"

print(helper.GetString())

"""
ABCDEFabcdefg
BDFabcdefg
"""

class StringHelper:

def __init__(self, source = None):

self.__source = source

def __sub__(self, removeCharacterList):

for removeCharacter in removeCharacterList:

self.__source = self.__source.replace(removeCharacter, "")

return StringHelper(self.__source)

def Remove(self, removeCharacterList):

return self.__sub__(removeCharacterList)

def GetString(self):

return self.__source

helper = StringHelper("ABCDEFabcdefg")

print(helper.GetString())

helper - "ACE"

print(helper.GetString())

"""

ABCDEFabcdefg

BDFabcdefg

"""