python Alphabet Conversion(Easy for)

faint... The string comes with swapcase method to learn about

Method 1: for loop through

content = "heLLo woRlD!"
result = []

for word in content:
    # 判断是小写字母
    if ord(word) in range(97,123):
        result.append(word.upper())
    # 判断是大写字母
    elif ord(word) in range(65,91):
        result.append(word.lower())
    else:
        result.append(word)

print(''.join(result))

Method 2: Call the string built-in method directly

content = "heLLo woRlD!"
print(content.swapcase())

If it helps, please click to accept ~

Please accept, thank you! 1, the effect is as follows

# 输入10个字符，字符串只含字母，将字母的大小写转换一下，将转换后的字符串输出
old = input('请输入10个字符：')
newValue=''
for item in old:
    if item.isupper():
        newValue+=item.lower()
    else:
        newValue+=item.upper()
print(f'字母的大小写转换后字符：{newValue}')