| 123456789101112131415161718192021 | package mainimport (	"context"	"fmt"	"github.com/longjoy/micro-go-course/section18/pb"	"google.golang.org/grpc")func main() {	serviceAddress := "127.0.0.1:8080"	conn, err := grpc.Dial(serviceAddress, grpc.WithInsecure())	if err != nil {		panic("connect error")	}	defer conn.Close()	userClient := pb.NewUserServiceClient(conn)	stringReq := &pb.LoginRequest{Username: "admin", Password: "admin"}	reply, _ := userClient.CheckPassword(context.Background(), stringReq)	fmt.Printf("CheckPassword ret is %s\n", reply.Ret)}
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