完成了俄罗斯方块所需的全部基本功能，并设置了暂停、继续、退出等快捷键，整个工程是在linux下的纯c编写，直接打开此工程即可运行。-Completed all the basic functions required by the Russian box, and set the pause, continue, exit shortcuts, the whole project is written in pure c under linux directly open this projec