calc.py

# encoding=utf-8
# 2016-12-17 class
def function_test(num, val1, val2):
    def minus():
        print val1 - val2
    def plus():
        print val1 + val2
    def muplti():
        print val1 * val2
    def division():
        print val1 / val2
    if num == 1:
        return plus()
    elif num == 2:
        return minus()
    elif num == 3:
        return muplti()
    elif num == 4:
        return division()

def customzied_bitshift():
    print "비트 쉬프트 연산을 합니다."


val1 = int(raw_input("첫번째 수: "))
val2 = int(raw_input("두번째 수: "))
print "[1.덧셈 2. 뺄셈 3. 곱셈 4. 나눗셈]"
opt = raw_input("원하시는 연산을 입력하세요: ")

function_test(int(opt), val1, val2)