jennyonjourney

def fn1():   #매개변수x,리턴x
    print("fn1()")
def fn2(a,b,c):   #매개변수o,리턴x
    print("fn2():", a,b,c, a+b+c)
def fn3():   #매개변수x,리턴o
    print("fn3():")
    return 100, 200, 300
def fn4(a,b):
    print("fn4():", a, b)
    return a*b

jennyonjourney

dic2 = {'키':157,
        '나이':26,
        '이름':'이은혜',
        '성별':'여자'}
print(dic2)
print(dic2['나이'])

dic2 = {'키':157,
        '나이':26,
        '이름':'이은혜',

jennyonjourney

arr1 = [11,22,33,44]
a = 10
b = a

print("a:", id(a))
print("b:", id(b))

a = 20

print("a:", id(a))

jennyonjourney

def fn1(arr):
    hap=0
    for i in arr:
        hap+=1
    print("fn1()",arr,hap)

fn1([11,22,33,44])

# 이렇게 튜플이 아니면 넣을수 없다 -> fn1(11,22,33,44)
# 열거형은 맨 뒤에서 온다.