小编Cri*_*eno的帖子

我想我在代码中遗漏了一些东西。

下面是我在 C# 中的代码

public Form1()
    {
        InitializeComponent();
        serialPort1.PortName = "COM2";
        serialPort1.BaudRate = 9600;
        serialPort1.Parity = Parity.None;
        serialPort1.DataBits = 8;
        serialPort1.StopBits = StopBits.One;
        serialPort1.Handshake = Handshake.RequestToSend;
        serialPort1.DtrEnable = true;
        serialPort1.RtsEnable = true;
        serialPort1.NewLine = System.Environment.NewLine;

    }

    private void btnSend_Click(object sender, EventArgs e)
    {
        serialPort1.Open();

    }

    private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
    {
        try
        {                
            string num = "+639952006630\n";
            serialPort1.Write(num);        

            string message = "Your child arrived at our school at " + DateTime.Now + ".";
            serialPort1.Write(message);                
        }
        catch (Exception ex)
        { …