重温WCF之数单向通讯、双向通讯（五）

    [ServiceContract(Namespace = "MyNamespace")]
    public interface IService
    {
        [OperationContract(IsOneWay = true)]
        void DoTestWork(string message);
    }

    [ServiceContract(Namespace = "MyNamespace")]
    public interface IService
    {
        [OperationContract(IsOneWay = false)]
        DateTime DoTestWork(string message);
    }