s="sdSdsfdAdsdsdfsfdsdASDSDFDSFa" s1=s.swapcase() print("调整之后的字符串为",s1) new_s='' for i in s1: if i.islower(): i = chr(219-ord(i)) new_s +=i elif i.isupper(): i=chr(155-ord(i)) new_s += i print("镜像之后的值：", new_s)