public void Remove()
{
land.SetBuilding(null);
land.AddFunction(Land.LandFunction.buildBuilding);
pipeManager.SetIfDenyForward(true);
Destroy(gameObject);
}
private void Start()
{
land = transform.GetComponentInParent <Land>();
land.SetBuilding(this);
land.RemoveFunction(Land.LandFunction.buildBuilding); //一旦建立了建筑，就移除建立功能
pipeManager = land.GetPipeManager();
pipeManager.SetIfDenyForward(false); //建立建筑后，开启请求传递
}