[python]altERnaTIng cAsE <=> ALTerNAtiNG CaSe

https://www.codewars.com/kata/56efc695740d30f963000557/train/python

Codewars: Train your coding skills

내 코드

# My Code
def to_alternating_case(string):
    answer =''
    for i in string:
        # 소문자이면 대문자로
        if i.isupper():
            answer += i.lower()
        # 대문자이면 소문자로
        elif i.islower():
            answer += i.upper()
        # 그 이외
        else:
            answer += i
    return answer
 
if __name__=='__main__':
    answer = to_alternating_case('hello world')
    print(answer)
    answer = to_alternating_case('HELLO WORLD')
    print(answer)
    answer = to_alternating_case('hello WORLD')
    print(answer)
    answer = to_alternating_case('HeLLo WoRLD')
    print(answer)
    answer = to_alternating_case('12345')
    print(answer)