如何从两个COM端口读取？

Question

我正在编写从COM端口读取的代码。我希望它从两个端口读取，而不必关闭第一个端口并打开第二个端口。我会如何去做这件事？

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

您可以创建两个CommPort对象并将它们都打开。只是'新'他们都起来，设置每个通信端口的参数，并在它。