字符串大小写转换

a = 'helo ,I like say hello world.'# 字符串首字母大写
def StrCapitalize(s):result = s.capitalize()return result# 字符串每个单词首字母大写
def StrTitle(s):result = s.title()return result# 字符串转大写
def StrUpper(s):result = s.upper()return result# 字符串转小写
def StrLower(s):result = s.lower()return result# 字符串大小写反转
def StrSwapcase(s):result = s.swapcase()return resultif __name__ == "__main__":print(f"字符串{a}首字母大写,输结果是:{StrCapitalize(a)}")print(f"字符串{a}每个单词首字母大写,输结果是:{StrTitle(a)}")print(f"字符串{a}全部转大写,输结果是:{StrUpper(a)}")print(f"字符串{a}全部转小写,输结果是:{StrLower(a)}")print(f"字符串{a}大小写反转,输结果是:{StrSwapcase(a)}")

输出结果