int ch ; r|rV1<d
ch=getche() ; 213D{#2
if((ch>='a') && (ch<='z'))
s9O] tk
printf("%c is a lowercase letter\n" ,ch); 9-p d{Z~l
else if ((ch>='A') && (ch<='Z')) pmHd1 Wub
print(" %c is a uppercase letter\n" ,ch); QIo|t!7F
else if((ch>'0')&&(ch<'9') h7(twct
printf(" %c is a number character between 0 and 9\n" ,ch) ; t1IC0'o-
else HHtp.;L/
printf("%c is...") {zmo7~=
ed*=p
l3.
外面再加个循环就行了