// .Connect throws an exception if unsuccessful
client.Connect(anEndPoint);
// This is how you can determine whether a socket is still connected.
bool blockingState = client.Blocking;
try
{
byte [] tmp = new byte[1];
client.Blocking = false;
client.Send(tmp, 0, 0);
Console.WriteLine("Connected!");
}
catch (SocketException e)
{
// 10035 == WSAEWOULDBLOCK
if (e.NativeErrorCode.Equals(10035))
Console.WriteLine("Still Connected, but the Send would block");
else
{
Console.WriteLine("Disconnected: error code {0}!", e.NativeErrorCode);
}
}
finally
{
client.Blocking = blockingState;
}
Console.WriteLine("Connected: {0}", client.Connected);
CSDN上这样说的，我觉得每次发送前要处理一次异常，系统开销比较大。可是还没有找到更好的办法
