支持手机蓝牙打印，通过设置虚拟串口来数据交换。-Support mobile bluetooth print, through the virtual serial ports data exchange.

串口打印，使用serialPort实现无驱动串口打印-com print

串口操作POS58小票打印机，绘图打印小票(POS58Plot printing small ticket)

用C#编写的串口热敏纸打印机程序， 适合打印各种账单， 类函数接口调用，移植方便。(The serial port thermosensitive paper printer program written by C# is suitable for printing all kinds of bills, calling class function interface, and convenient for transplantation.)