求助 帮忙看下这个代码

y & Numpad4::
loop
{
GetKeyState, state, Numpad4, P
GetKeyState, state1, Numpad8, P
GetKeyState, state2, Numpad5, P
if state = D
{
Send {Numpad4}
return
}
if state = D && state1 = D
{
Send {Numpad4}
Send {Numpad8}
return
}
if state = D && state2 = D
{
Send {Numpad4}
Send {Numpad5}
return
}
}
return