var err error

var c net.Conn

c, err = net.DialTimeout("tcp", "127.0.0.1:1234", 1000*1000*1000*30)

if err != nil {

log.Fatal("dialing:", err)

}

var client *rpc.Client

client = jsonrpc.NewClient(c)

// 同步

var args *Args = &Args{7,8}

var reply *Data = new(Data)

client.Call("Arith.Plus", args, reply)

fmt.Println(reply)

// 异步

args.A = 1

args.B = 2

var call *rpc.Call

call = client.Go("Arith.Plus", args, reply, nil)

var doneCall *rpc.Call

doneCall = <-call.Done

fmt.Println(doneCall.Args, doneCall.Reply)

fmt.Println(args, reply)

client.Close()

c.Close()