首先被点击的物体需要加上碰撞体Collider

监听点击代码：

鼠标点击：

if (Input.GetMouseButtonDown(0))
      //判断鼠标点击，触屏判断使用Input.touchCount
        {
            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
          
            RaycastHit hitInfo;
            if (Physics.Raycast(ray, out hitInfo))
            {
Debug.Log("name==:" + hitInfo.transform.name);
                switch (hitInfo.transform.name)
                {
                }
            }
        }
        
    }

触摸监听：

if (Input.GetTouchCount >0)
     
        {
          
            Ray ray = Camera.main.ScreenPointToRay(Input.GetTouch(0).position);
          
            RaycastHit hitInfo;
            if (Physics.Raycast(ray, out hitInfo))
            {
Debug.Log("name==:" + hitInfo.transform.name);
                switch (hitInfo.transform.name)
                {
                }
            }
        }
    }