int ch ; KF.{r
ch=getche() ; Xh9QfT ,
if((ch>='a') && (ch<='z')) p`"k=tZ{
printf("%c is a lowercase letter\n" ,ch); aB,-E>+
else if ((ch>='A') && (ch<='Z')) 5'zXCHt
print(" %c is a uppercase letter\n" ,ch); }Le]qR9Y]
else if((ch>'0')&&(ch<'9') U$OZkHA[
printf(" %c is a number character between 0 and 9\n" ,ch) ; 39X~<\&'
else }%|ewy9|CW
printf("%c is...") J&xZN8jW
.GrOdDK$ns
外面再加个循环就行了