这是一个俄罗斯方块的源代码，非常好的注释，非常清晰的编程思路，很有利于编程门的使用，而且嵌入到单片机中，很好玩的-This is a Tetris source code, very good notes, a very clear idea of programming, is very beneficial to program the door to use and embedded microcontroller, it is fun