SDL（Simple DirectMedia Layer）是一套开放源代码的跨平台多媒体开发库。SDL提供了数种控制图像、声音、输出入的函数，目前SDL多用于开发游戏、模拟器、媒体播放器等多媒体应用领域。-SDL (Simple DirectMedia Layer) is an open source cross-platform multimedia development library. SDL provides several control images, sound, input a