클래스, Exception, with 구문

기본적으로 파이썬에서는 메서드와 속성 모두 public

class 클래스이름:
    def __init__(self,인수,...): #생성자
    def 메서드이름(self,인수...):   #메서드

클래스변수(C++에서의 static변수)

class Person:
    count = 0
    def __init__(self,name,name2):
        self.name = name
        self.__name = name2  #private 멤버
        Person.count += 1
        print(self.name + " is initialized")
    def work(self, company):
        print(self.name + " is working in " + company)
    def sleep(self):
        print(self.name + " is sleeping")
    @classmethod
    def getCount(cls):
        return cls.count

obj1 = Person("PARK")
obj2 = Person("KIM")

obj1.work("ABCDE")

obj2.sleep()

print("courrent person object is ", obj1.name, ", ", obj2.name)

print("Person count == ", Persion.getCount())

print(Person.count)

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def print_name(name):
    print('[def] ', name)

class SampleTest:
    def __init__(self):
        pass #아무것도 안하면 pass
    def print_name(self, name):
        print('[SampleTest] ', name)
    def call_test(self):
        print_name('KIM')      #전역함수를 호출
        self.print_name('KIM') #멤버 함수를 호출

obj = SampleTest()
print_name('LEE')

obj.print_name('LEE')

obj.call_test()
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def calc(list_data):
    sum = 0
    try:
        sum = list_data[0] + list_data[1] + list_data[2]
        if sum < 0
            raise Exception("Sum is minus")
    except IndexError as err:
        print(str(err))
    except Exception as err:
        print(str(err))
    finally:
        print(sum)


calc([1,2])

calc([1,2,-100])

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#파일 또는 세션 사용 순서 : open > read/write > close
f = open("./file_test", "w")
f.write("Hello, Python !!!")
f.close()

#with를 쓰면 close를 자동으로 해준다.
with open("./file_test", "w") as f:
    f.write("Hello, Python !!!")