如何從兩個COM端口讀取？

Question

我正在編寫從COM端口讀取的代碼。我希望它從兩個端口讀取，而不必關閉第一個端口並打開第二個端口。我會如何去做這件事？

Answer 1

using System.IO.Ports; 

... 

SerialPort port1 = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One); 
SerialPort port2 = new SerialPort("COM2", 9600, Parity.None, 8, StopBits.One); 

port1.DataReceived += new SerialDataReceivedEventHandler(port1_DataReceived); 
port2.DataReceived += new SerialDataReceivedEventHandler(port2_DataReceived); 
port1.Open(); 
port2.Open(); 

... 

private void port1_DataReceived(object sender, SerialDataReceivedEventArgs e) 
{ 
    // Show all the incoming data in the port's buffer 
    Console.WriteLine(port1.ReadExisting()); 
} 
private void port2_DataReceived(object sender, SerialDataReceivedEventArgs e) 
{ 
    // Show all the incoming data in the port's buffer 
    Console.WriteLine(port2.ReadExisting()); 
} 

Answer 2

您可以創建兩個CommPort對象並將它們都打開。只是'新'他們都起來，設置每個通信端口的參數，並在它。