public void CancelPlayerMatch(CancelPlayerMatchPara para, Action <ResponseEvent> callback) { void Eve(ResponseEvent e) { if (e.Code == ErrCode.EcOk) { BroadcastOnce.RemoveCallbacksByTag(BroadcastOnce.PlayerComplex); BroadcastOnce.RemoveCallbacksByTag(BroadcastOnce.PlayerSimple); } callback?.Invoke(e); } Sdk.CancelMatch(para, Eve); }