int ch ; u>3&.t@hU1
ch=getche() ; NE=#5?6%g7
if((ch>='a') && (ch<='z')) 6KIjq[T^
printf("%c is a lowercase letter\n" ,ch); 5Gw!9{ke
else if ((ch>='A') && (ch<='Z')) \Age9iz&
print(" %c is a uppercase letter\n" ,ch); :o.x=c B
else if((ch>'0')&&(ch<'9') <6}f2^
printf(" %c is a number character between 0 and 9\n" ,ch) ; S,wj[;cv4
else }<}`Q^Mlk
printf("%c is...") |`q)/ 08b
% L %1g
外面再加个循环就行了