Trivial

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IEnumerator OnMouseDown()     {         Debug.Log(2121212);         Vector3 targetScreenPos = Camera.main.WorldToScreenPoint(moveBreakDrill.transform.position);//三维物体坐标转屏幕坐标         将鼠标屏幕坐标转为三维坐标，再计算物体位置与鼠标之间的距离         var offset = moveBreakDrill.transform.position - Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, targetScreenPos.z));           while (Input.GetMouseButton(0))         {             Debug.Log("jinruyidong");             将鼠标位置二维坐标转为三维坐标             Vector3 mousePos = new Vector3(Input.mousePosition.x, Input.mousePosition.y, targetScreenPos.z);             将鼠标转换的三维坐标再转换成世界坐标 + 物体与鼠标位置的偏移量             var targetPos = Camera.main.ScreenToWorldPoint(mousePos) + offset;             moveBreakDrill.transform.position = targetPos;             yield return new WaitForFixedUpdate();//循环执行         }     }

　　

MonoBehaviour<Behaviour<Component<Object