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private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte[] b = new byte[serialPort1.BytesToRead];
serialPort1.Read(b, 0, b.Length);
string data = "";
foreach (var i in b)
{
data += i.ToString() + "-";
}
textBox1.Text += "收到数据:" + data + "\r\n";
}
Thread.Sleep(100);