Triangle containment Three distinct points are plotted at random on a Cartesian plane, for which -1000 ≤ x, y ≤ 1000, such that a triangle is formed. Consider the following two triangles: A(-340,495), B(-153,-910), C(835,-947)X(-175,41), Y(-421,-714)
这是取得DC句柄的其中一种方法(会重定义原点和建立新的剪裁区): function TControl.GetDeviceContext(var WindowHandle: HWnd): HDC; begin if Parent = nil then raise EInvalidOperation.CreateFmt(SParentRequired, [Name]); Result := Parent.GetDeviceContext(WindowHandle); SetViewportOrgEx
系统还原可帮助您将计算机的系统文件及时还原到早期的还原点.此方法可以在不影响个人文件(比如电子邮件.文档.照片等)的情况下,撤销对计算机的系统更改.有时,安装一个程序或驱动程序会导致对计算机的异常更改或者 Windows 行为异常.通常情况下,卸载程序或驱动程序可以解决此问题.如果卸载没有解决这种问题,则尝试将计算机系统还原到之前一切运行正常时的日期. 系统还原使用系统保护的功能定期创建和保存计算机上的还原点.这些还原点包含 有关注册表设置和 Windows 使用的其他系统的信息.可以手动创建还
There is a robot starting at position (0, 0), the origin, on a 2D plane. Given a sequence of its moves, judge if this robot ends up at (0, 0) after it completes its moves. The move sequence is represented by a string, and the character moves[i] repre