static void AsyncCompleted(IAsyncResult tempIAsyncResult)
{
plusMinusDelegate tempPlusDelegate = (plusMinusDelegate)tempIAsyncResult.AsyncState;
int res = tempPlusDelegate.EndInvoke(tempIAsyncResult);
Console.WriteLine(res);
}
static void Main(string[] args)
{
plusMinusDelegate myPlusDelegate = new plusMinusDelegate(plus);
myPlusDelegate.BeginInvoke(1, 2, new AsyncCallback(AsyncCompleted), myPlusDelegate);
plusMinusDelegate myMinusDelegate = new plusMinusDelegate(minus);
myMinusDelegate.BeginInvoke(1, 2, new AsyncCallback(AsyncCompleted), myMinusDelegate);
Console.WriteLine("##########################");
Console.Read();
}
