SDL是Simple DirectMedia Layer（简易直控媒体层）的缩写。它是一个跨平台的多媒

体库，以用于直接控制底层的多媒体硬件的接口。这些多媒体功能包括了音频、键盘和鼠标

（事件）、游戏摇杆等。当然，最为重要的是提供了 2D图形帧缓冲（framebuffer）的接口，

以及为 OpenGL 与各种操作系统之间提供了统一的标准接口以实现 3D图形。从这些属性我

们可以看出，SDL 基本上可以认为是为以电脑游戏为核心开发的多媒体库。-SDL is the Simple DirectMedia Layer (simple direct control of the media layer) of the acronym. It is a cross-platform multimedia

Physical library to be used for direct control of the underlying multimedia hardware interface. These multimedia features include audio, keyboard and mouse

(Event), joysticks and so on. Of course, the most important is to provide a 2D graphics frame buffer (framebuffer) interface,

As well as a variety of operating systems with OpenGL to provide a unified standard interface in order to achieve 3D graphics. I am from these properties

Can be seen, SDL is basically a computer game that is the core of the development of multimedia library.