非原创. 接收16进制数据,在TextBox委托显示: private void readPortandShow() { char[] HexChar = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; byte receivebyte = (byte)serialPort1.ReadByte(); char hexH = HexChar[receivebyte / 16];…