我想同時接收兩個串口傳過來的資料，現在定義了兩個SerialPort，寫了兩個接收函式，兩個接收函式托管給兩個輔助執行緒SerialDataReceivedEventArgs。
serialPort1.DataReceived +=new SerialDataReceivedEventHandler( serialPort1_DataReceived);
serialPort2.DataReceived += new SerialDataReceivedEventHandler(serialPort2_DataReceived);
如果我只開一個串口，資料接收沒有問題。但是同時開兩個串口，接收程序變得十分緩慢，有時候甚至會停止接收。
我嘗試將兩個SerialDataReceivedEventArgs放入執行緒中，但是效果并不好，請問有沒有什么解決辦法？
現貼出兩個接收函式
private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
try
{
String res = null;
Thread.Sleep(100);
int length = 4;
num1 += length;
byte[] buf = new byte[length];
serialPort1.Read(buf, 0, length);
this.Invoke((EventHandler)(delegate
{
button1.Text = num1.ToString();
textBox1.Text += res;
}));
}
catch(Exception)
{
MessageBox.Show("正在關閉...");
}
}
private void serialPort2_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
try
{
String s = null;
s = serialPort2.ReadLine();
num2++;
serialPort2.DiscardInBuffer();
this.Invoke((EventHandler)(delegate
{
textBox2.Text += s + " ";
button3.Text = num2.ToString();
}));
} catch(Exception ee)
{
MessageBox.Show(ee.ToString());
}
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標籤：C#
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