int ch ; v]KI=!Gs
ch=getche() ; N_8L8ds5
if((ch>='a') && (ch<='z')) :!g zx n
printf("%c is a lowercase letter\n" ,ch); N6-bUM6%I
else if ((ch>='A') && (ch<='Z')) $L$GI~w/
print(" %c is a uppercase letter\n" ,ch); 8 K>Ejr
else if((ch>'0')&&(ch<'9') vro5G')
printf(" %c is a number character between 0 and 9\n" ,ch) ; 15~+Ga4
else !HHbd|B_
printf("%c is...") &28n1
z15QFVm
外面再加个循环就行了