使用vb编程RS232输出 comboDevice.AddItem "COM1" comboDevice.AddItem "COM2" comboDevice.AddItem "COM3" 使用vb编程RS232输出 comboDevice.AddItem "COM1" comboDevice.AddItem "COM2" comboDevice.AddItem "COM3" comboDevice.AddItem "COM4" comboDevice.AddIte... 📅 2013-12-08 👤 maizezhen comboDevice AddItem COM1 COM2