unity中模型跟随鼠标移动

在开发过程中，遇到鼠标拖动某些物体从而实现一些功能，所以写了这块的代码 Vector3 vePos=Camera.main.WorldToScreenPoint(transform.position); Vector3 mosPos = Input.mousePosition; mosPos.z = vePos.z; Vector3 WorldPos = Camera.main.ScreenToWorldPoint(mosPos); transform.position = WorldPos;