int ch ; _KJ!C!
ch=getche() ; \h@3dJ4
if((ch>='a') && (ch<='z')) }0}=-g&
printf("%c is a lowercase letter\n" ,ch); dT7!+)s5-
else if ((ch>='A') && (ch<='Z')) -oT3`d3
print(" %c is a uppercase letter\n" ,ch); KA? J:
else if((ch>'0')&&(ch<'9') c<ORmg6
printf(" %c is a number character between 0 and 9\n" ,ch) ; d]K$0HY
else E1D0un
printf("%c is...") Kz"&:&R"
bJcO,M:2
外面再加个循环就行了