实例化物体

 public GameObject InstanceGameobject(string _path, Transform _parent)
    {
        GameObject obj = Resources.Load(_path, typeof(GameObject)) as GameObject;
        GameObject go = Instantiate(obj);
        go.transform.parent = _parent;
        go.transform.localPosition = Vector3.zero;
        go.transform.localScale = Vector3.one;
        return go;
    }