字对齐状态机，接收serdes下来的20位位宽数据，寻找逗号码，调整输出顺序-Word alignment state machine receiving serdes down 20-bit wide data, looking for funny numbers, adjust the output sequence

计算机网络课程设计实验,距离矢量路由算法,在运行前须在c磁盘下建立文档data txt,并且输入49个数字 1~9或- 用逗()