C#串口MudbusRTU协议编程

/* //读取串口中一个字节的数据 String ch = mySerialPort.ReadExisting(); switch (ch) { case "$": //接收到串口头 ReceiveData = ""; break; case "\n": //接收到串口尾 //在拥有此控件的基础窗口句柄的线程上执行委托Invoke(Delegate) //即在控件textBoxInformation的父窗口form中执行委托. textBoxInformation.Invoke ( new MethodInvoker ( delegate { //textBoxInformation.AppendText(ReceiveData); textBoxReceiveData.Text = ReceiveData; } ) ); break; default: ReceiveData += ch; break; } int ch = mySerialPort.ReadByte(); string str = string.Empty; switch (ch) { case 0x12: //接收到串口头，清空数组 Array.Clear(ReceiveData, 0, ReceiveData.Length); ReceiveDataIndex = 0; break; case 0x14: //接收到串口尾，输出string for (int i = 0; i < ReceiveData.Length; i++) { str += (ReceiveData[i] - '0').ToString(); } //在拥有此控件的基础窗口句柄的线程上执行委托Invoke(Delegate) //即在控件textBoxInformation的父窗口form中执行委托. textBoxInformation.Invoke ( new MethodInvoker ( delegate { //textBoxInformation.AppendText(ReceiveData); textBoxReceiveData.Text = str; } ) ); break; default: ReceiveData[ReceiveDataIndex] = ch; ReceiveDataIndex++; if (ReceiveDataIndex > ReceiveData.Length) { ReceiveDataIndex = ReceiveData.Length - 1; } break; }