Prepare > Python > Strings > sWAP cASE

https://www.hackerrank.com/challenges/swap-case/problem?isFullScreen=true

 

문제

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You are given a string and your task is to swap cases. In other words, convert all lowercase letters to uppercase letters and vice versa.

 

=> 주어진 문자를 대소문자 바꿔서 출력하라.

 

 

 

 

코드

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def swap_case(s):
    fin = ""
    for i in s:
        if i.islower() == True:
            fin = fin + i.upper()
        elif i.isupper() == True:
            fin = fin + i.lower()
        else:
            fin = fin + i
    return fin

if __name__ == '__main__':

 

 

 

 

노트

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• a.isupper(): a가 대문자이면 True
• a.islower(): a가 소문자이면 True

# INPUT
b = 'qweR'
print(b.islower())
print(b.isupper())

# OUTPUT
False
False

 

 

 

 

참조

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[Python] 대소문자 확인 및 변환

 

HackerRank Python Solution / sWAP cASE