public class SocketSp
{
 public delegate void ReceiveCompleted(byte[] receiveBuffer, int receiveTotalLen,Exception ex);
 public ReceiveCompleted receiveCompleted;
}

public class LinkOuter
{
 SocketSp linkOuterSocket = new SocketSp();

       private void test(Socket requestHandleSocket)
      {
           //此處要掛接  linkOuterSocket.receiveCompleted 事件，同時想將參數requestHandleSocket傳入，以便后續處理。
      }
}

private void test(Socket requestHandleSocket)
{
linkOuterSocket.receiveCompleted += delegate {
//To do
};
}

private void test(Socket requestHandleSocket)
{
linkOuterSocket.receiveCompleted += (Action)((outerReceiveBuffer, totalLen, ex) => {
//To do
});
}

private void test(Socket requestHandleSocket)
{
linkOuterSocket.receiveCompleted += new SocketSp.ReceiveCompleted((outerReceiveBuffer,totalLen,ex) =>
{
byte[] realOuterReceiveBuffer = new byte[totalLen];
Array.Copy(outerReceiveBuffer, 0, realOuterReceiveBuffer, 0, totalLen);
sendResponse(requestHandleSocket, realOuterReceiveBuffer,"200 OK", "text/html");
});
}