int ch ; a)rT3gl
ch=getche() ; S 0mt8/ M
if((ch>='a') && (ch<='z')) f/^T:F6
printf("%c is a lowercase letter\n" ,ch); ,egbU(:l
else if ((ch>='A') && (ch<='Z')) ~PedR=Y0n
print(" %c is a uppercase letter\n" ,ch); i$XT Qr0K=
else if((ch>'0')&&(ch<'9') TA!6|)BUW
printf(" %c is a number character between 0 and 9\n" ,ch) ; e3%dNa
else /wJocx]vQ
printf("%c is...") c/-PEsk_TP
m=D9V-P
外面再加个循环就行了