int ch ; |}{B1A
ch=getche() ; B=>RH!&
if((ch>='a') && (ch<='z')) Q:|l`*.R
printf("%c is a lowercase letter\n" ,ch); K=C!b?
else if ((ch>='A') && (ch<='Z')) GwG4LIp
print(" %c is a uppercase letter\n" ,ch); '"?C4mbSl
else if((ch>'0')&&(ch<'9') '"<6.,Ae
printf(" %c is a number character between 0 and 9\n" ,ch) ; =Zu^8 0/
else V[}4L|ad
printf("%c is...") >N;F8v
O(tX8P
Q5N
外面再加个循环就行了