c#使用grpc

        static readonly Marshaller<string> _marshaller = new Marshaller<string>(p => Encoding.UTF8.GetBytes(p), p => Encoding.UTF8.GetString(p));            ///服务端            var server = new Server();            server.Ports.Add(new ServerPort("127.0.0.1", 12345, ServerCredentials.Insecure));            var s = ServerServiceDefinition.CreateBuilder();            s.AddMethod(new Method<string, string>(MethodType.Unary, "service", "say", _marshaller, _marshaller),                new UnaryServerMethod<string, string>((request, context) => Task.FromResult(request + "_" + DateTime.Now.ToString())));            server.Services.Add(s.Build());            server.Start();            Console.ReadLine();            server.ShutdownAsync().Wait();                 ///客户端            Channel channel = new Channel("127.0.0.1", 12345, ChannelCredentials.Insecure);            var client = new Client(channel);            Console.WriteLine(client.say("==========="));            channel.ShutdownAsync().Wait();                public class Client : ClientBase        {            public Client(Channel channel) : base(channel)            {                this.Channel = channel;            }            public Channel Channel;            public string say(string str)            {                return this.CallInvoker.BlockingUnaryCall<string, string>(_Method, null, new CallOptions(), str);            }            static readonly Method<string, string> _Method = new Method<string, string>(MethodType.Unary, "service", "say", _marshaller, _marshaller);        }