POS打印测试，可以按照你输入的内容以及设定的格式来打印小票。支持所有POS机。,POS print test

POS网口打印机,打印控制代码。通过网线直接与打印机连接。包括检测和打印。-POS network printer port, print control code. Through the network cable to connect directly with the printer. Including testing and printing.