Unity3D鼠標坐標轉世界坐標和局部坐標

鼠標坐標轉世界坐標和局部坐標：
    Vector3 MousePosition2Local () {
        mousePosition = Input.mousePosition; //獲取屏幕坐標
        mouseWorldPos = Camera.main.ScreenToWorldPoint (mousePosition); //屏幕坐標轉世界坐標
        mouseLocalPos = transform.parent.transform.InverseTransformPoint (mouseWorldPos); //世界坐標轉本地坐標

        return CorrectPos(mouseLocalPos);
    }