int ch ; _-3n'i8
ch=getche() ; l4dG=x}M]
if((ch>='a') && (ch<='z')) #4JLWg
printf("%c is a lowercase letter\n" ,ch); T:@7EL
else if ((ch>='A') && (ch<='Z')) k~gOL#$
print(" %c is a uppercase letter\n" ,ch); XK\3"`kd
else if((ch>'0')&&(ch<'9') X&kp1Ih<^
printf(" %c is a number character between 0 and 9\n" ,ch) ; K7([Gc9
else DVVyWn[
printf("%c is...") ;b:'i&r
5\=
y9Z- x
外面再加个循环就行了