AS3 UDP 套接字 (AIR)

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package
{
import flash.display.Sprite;
import flash.events.DatagramSocketDataEvent;
import flash.events.Event;
import flash.net.DatagramSocket;
import flash.utils.ByteArray;
public class DatagramSocketExample extends Sprite
{
private var datagramSocket:DatagramSocket;
//The IP and port for this computer 本机
private var localIP:String = "127.0.0.1";
private var localPort:int = 10101;
//The IP and port for the target computer 目标计算机
private var targetIP:String = "127.0.0.1";
private var targetPort:int = 10000;
public function DatagramSocketExample()
{
//Create the socket
datagramSocket = new DatagramSocket();
datagramSocket.addEventListener( DatagramSocketDataEvent.DATA, dataReceived );
//将套接字绑定到本地网络接口和端口(端口,IP)
datagramSocket.bind( localPort
);
//Listen for incoming datagrams
datagramSocket.receive();
//Create a message in a ByteArray
var data:ByteArray = new ByteArray();
data.writeUTFBytes("Hello.");
// data.writeMultiByte("你好，中文字符GB2312汉字","gb2312"); //发送中文字符
//向目标计算机发送消息
datagramSocket.send( data, 0, 0, targetIP, targetPort);
}
private function dataReceived( event:DatagramSocketDataEvent ):void
{
//Read the data from the datagram
trace("Received from " + event.srcAddress + ":" + event.srcPort + "> " +
event.data.readUTFBytes( event.data.bytesAvailable ) );
// trace(event.data.readMultiByte( event.data.bytesAvailable, "gb2312")); //解析中文字符
}
}}