private void Form1_Load(object sender, EventArgs e)
{
string[] ports = SerialPort.GetPortNames(); //获取电脑上所有串口
Array.Sort(ports);
cmb_port.Items.AddRange(ports); //将串口全部添加到下拉框中
cmb_port.SelectedIndex = cmb_port.Items.Count > 0 ? 0 : -1; //默认选项
//sp.PortName = cmb_port.Text;
sp.DataReceived += new SerialDataReceivedEventHandler(RecvData); //注册事件，当串口接收到数据时触发
RecvCallBack = new RecvDisplayHandler(RecvDisplay);
}
private void Form1_Load(object sender, EventArgs e)
{
Control.CheckForIllegalCrossThreadCalls = false; //可以跨线程使用
sp = new SerialPort();
timerLoop = new Timer();
string[] ports = SerialPort.GetPortNames(); //获取电脑上所有串口
Array.Sort(ports);
cmb_port.Items.AddRange(ports); //将串口全部添加到下拉框中
cmb_port.SelectedIndex = cmb_port.Items.Count > 0 ? 0 : -1; //默认选项
sp.DataReceived += new SerialDataReceivedEventHandler(RecvData); //注册事件，当串口接收到数据时触发
RecvCallBack = new RecvDisplayHandler(RecvDisplay);
timerLoop.Tick += new EventHandler(LoopSend);
}
