//获取SteamVR_TrackedObject组件
SteamVR_TrackedObject steamVR;
steamVR = GetComponent<SteamVR_TrackedObject>();
//通过获取组件的ID,获取输入控制驱动:SteamVR_Controller.Device
SteamVR_Controller.Device device= SteamVR_Controller.Input((int)steamVR.index);
//device.getxxxx可以获取各种信息, Valve.VR.EVRButtonId获地相印的设备的参数
Debug.Log(device.GetAxis(Valve.VR.EVRButtonId.k_EButton_SteamVR_Touchpad));