Python 소문자 변경하는 함수만들기

def lowercase(string):

lowercaseStr = ""

for index in range(len(string)):

# Condition : uppercase letter, replace uppercase letter to lowercase letter

if(65 <= ord(string[index]) and ord(string[index]) <= 90):

asciiIndex = ord(string[index]) + 32

lowercaseStr += chr(asciiIndex)

# Condition : lowercase letter, Just adds on original letter

else:

lowercaseStr += string[index]

return lowercaseStr

print (lowercase("Hi Cassie! COLLEGE station weather is REALLY HoT"))

* ord function

  : It is a inbuilt function return an integer representing the Unicode code

Examples:

Input : a
Output : 97

Reference site : https://www.geeksforgeeks.org/ord-function-python/

* chr function

  : It is a inbuilt function that converts ASCII-based number to character

Syntax:

chr(num)
num : integer value

Reference site : https://www.geeksforgeeks.org/chr-in-python/