这个程序是POS机java下面下载终端用的，很好用，看代码就知道了-This program is under the POS machine java download terminal, easy to use, look at the code to know

此为JAVA SOCKET SERVER程式，可模拟从银行置机返还信息给POS终端的信息，也可以接受客户端的发送的BYTE，并显示在显示屏上。-This is a JAVA SOCKET SERVER program can simulate the machine returned home from the bank information to the POS terminal of the information, you can also send the client to acce