Add BoundBox2d BoundBox2d BoundBox2d Contains Contains GetCenter Height Intersect Intersect Intersect IsEqual IsValid MaxX MaxY MinX MinY operator= operator== SetVoid Width

operator=() BoundBox2d & operator= ( const BoundBox2d &  rclBB ) 重载 = 操作符 将另一个二维包围盒的内容赋值给当前包围盒。 参数 [in] rclBB 要赋值的二维包围盒 返回 当前包围盒的引用