int ch ; ZAMS;e+e
ch=getche() ; ~kPZh1n`
if((ch>='a') && (ch<='z')) LzkwgcR
printf("%c is a lowercase letter\n" ,ch); [T#9#3
else if ((ch>='A') && (ch<='Z')) NGb\e5?
print(" %c is a uppercase letter\n" ,ch); _xU2C<)1&
else if((ch>'0')&&(ch<'9') WG3 .qLH%
printf(" %c is a number character between 0 and 9\n" ,ch) ; g
[+_T{
else xr-v"-
printf("%c is...") 1FmVx
z=VL|Du1OT
外面再加个循环就行了