用C语言编写的俄罗斯方块游戏的源代码，可以运行。有游戏方块预览功能，方块控制功能，游戏显示更新功能，游戏速度分数更新功能，还有显示帮助功能。-Written using C language source code for Tetris game, you can run. A game preview box, box control, the game show update feature, the game speed score update feature, as well as display help function.