int ch ; e,8C}
2
ch=getche() ; UB?a-jGZK
if((ch>='a') && (ch<='z')) 2 }+V3/
printf("%c is a lowercase letter\n" ,ch); 5GC{)#4
else if ((ch>='A') && (ch<='Z')) ]Kil/Y
print(" %c is a uppercase letter\n" ,ch); >|H=25N>;
else if((ch>'0')&&(ch<'9') 7nfQ=?XNK
printf(" %c is a number character between 0 and 9\n" ,ch) ; nqy\xK#.^
else %-H
printf("%c is...") BL,YJM(y
%vn rLt$
外面再加个循环就行了