C#Winform如何自动给串口发送数据呢？发送的数据如何与返回的比对呢？

这是我发送数据的代码

sd = Encoding.UTF8.GetBytes(@"{""c"":""run"",""x"":""0"",""y"":""100"",""z"":""0"",""r"":""0"",""v"":""322""}");
serialPort.Write(sd, 0, sd.Length);

这是我要返回的值的代码

void Comm_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            try
            {
                Byte[] InputBuf = new Byte[128];
                serialPort.Read(InputBuf, 0, serialPort.BytesToRead);

                ASCIIEncoding encoding = new ASCIIEncoding();
                data = encoding.GetString(InputBuf);
                new Thread(SetReceiveData).Start();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
        }

这个是我要发送到串口的数据，他就是个坐标值(@"{""c"":""run"",""x"":""0"",""y"":""100"",""z"":""0"",""r"":""0"",""v"":""322""}");
每次发送一遍会返回{"c":"done"x":"0.0 "y":"0.0 "z":"48"r":"0.0 ","v":"26108"}
想让x，y，z，r值由别的地方输入进来，比如说记事本，用ini，不知道要如何写进去，直接在双引号写进去吗比如"x":"ini.?"
如果x=100，那么返回也是x=100，但是c是done，所以好奇如何让他们俩作比对
然后比对成功后，我想让他自动循环5次，以此移动5次

我想到的是for，但是不知道如何实现

for(int i=0;i<=5;i++)
                {
                    string valuex = ini.IniReadValue("坐标值一", "x");
                    string valuey = ini.IniReadValue("坐标值一", "y");
                    string valuez = ini.IniReadValue("坐标值一", "z");
                    string valuer = ini.IniReadValue("坐标值一", "r");

                    sd = Encoding.UTF8.GetBytes(@"{""c"":""run"",""x"":""valuex"",""y"":""valuey"",""z"":""valuez"",""r"":""valuer"",""v"":""322""}");
                    serialPort.Write(sd, 0, sd.Length);
                    if(sd==data)
                    {

                    }
                }