int ch ; K
V-}:u(
ch=getche() ;
")cJA f
if((ch>='a') && (ch<='z')) 8w|-7$ v
printf("%c is a lowercase letter\n" ,ch); 8^FAeV#
else if ((ch>='A') && (ch<='Z')) F3L'f2yBG
print(" %c is a uppercase letter\n" ,ch); #& 5}
else if((ch>'0')&&(ch<'9') M((]> *g
printf(" %c is a number character between 0 and 9\n" ,ch) ; Z1t?+v+Ro*
else dY'mY ~Tv
printf("%c is...") t@(`24
`0qBuE_^h
外面再加个循环就行了