python返回漢字的首字母

def get_first_letter(char):

char=char.encode('GBK')
if char<b"\xb0\xa1" or char>b"\xd7\xf9":

   return ""


if char<b"\xb0\xc4":

   return "a"


if char<b"\xb2\xc0":

   return "b"


if char<b"\xb4\xed":

   return "c"


if char<b"\xb6\xe9":

   return "d"


if char<b"\xb7\xa1":

   return "e"


if char<b"\xb8\xc0":

   return "f"


if char<b"\xb9\xfd":

   return "g"


if char<b"\xbb\xf6":

   return "h"


if char<b"\xbf\xa5":

   return "j"


if char<b"\xc0\xab":

   return "k"


if char<b"\xc2\xe7":

   return "l"


if char<b"\xc4\xc2":

   return "m"


if char<b"\xc5\xb5":

   return "n"


if char<b"\xc5\xbd":

   return "o"


if char<b"\xc6\xd9":

   return "p"


if char<b"\xc8\xba":

   return "q"


if char<b"\xc8\xf5":

   return "r"


if char<b"\xcb\xf9":

   return "s"


if char<b"\xcd\xd9":

   return "t"


if char<b"\xce\xf3":

   return "w"


if char<b"\xd1\x88":

   return "x"


if char<b"\xd4\xd0":

   return "y"


if char<b"\xd7\xf9":

   return "z"</pre>