void Update()
        {
            Ray        tempRay = Camera.main.ScreenPointToRay(Input.mousePosition);
            RaycastHit hit;

            if (Physics.Raycast(tempRay, out hit, 2000))
            {
                PointCenterAxis tempPCA = hit.collider.GetComponent <PointCenterAxis>();
                PointAxis       tempPA  = hit.collider.GetComponent <PointAxis>();
                if (Input.GetKeyDown(KeyCode.Mouse0))
                {
                    if (null != tempPCA)
                    {
                        Reset_SelectedState();
                        PCA = tempPCA;
                        PCA.IsBeSelected = true;
                    }
                    else if (null != tempPA)
                    {
                        Reset_SelectedState();
                        PA = tempPA;
                        PA.isBeSelected = true;
                    }
                }
            }

            if (Input.GetKeyUp(KeyCode.Mouse0))
            {
                Reset_SelectedState();
            }
        }
        /// <summary>
        /// 重置数据
        /// </summary>
        private void Reset_SelectedState()
        {
            if (null != PCA)
            {
                PCA.IsBeSelected = false;
                PCA = null;
            }

            if (null != PA)
            {
                PA.isBeSelected = false;
                PA = null;
            }
        }