鼠标右键选中物体并旋转的脚本

var from :Vector2;
function Update(){
        if (Input.GetMouseButton(1)){
                var offset = Input.mousePosition;
                transform.Rotate(Vector3.up*offset.x,Space.World);
                transform.Rotate(Vector3.right*offset.y,Space.World);
                from -= Input.mousePosition;
        }
}