Golang fmt.Print函數代碼示例

func TestLRUCache(t *testing.T) {
	strategy := NewLRUPeriodFlushStrategy(3, 100, 0)
	storage := NewInMemoryKeyValueStorage(10)
	flusher := &FakeFlusher{}

	cache := NewKeyValueCache(storage, strategy, flusher)
	fmt.Print("Start LRU cache test ...\t")

	for i := 0; i < 10; i++ {
		str := fmt.Sprint(i)
		cache.Show(str, str)
	}

	keys, _ := cache.Keys()
	if !same(convert2string([]int{7, 9, 8}), keys) {
		t.Errorf("should be [7 8 9], but %v", keys)
	}

	if v, _ := cache.Get("1"); v != nil {
		t.Errorf("%v should not be in cache", v)
	}

	cache.Get("7")
	cache.Show("1", "1")

	if v, _ := cache.Get("8"); v != nil {
		keys, _ := cache.Keys()
		t.Errorf("%v should not be in cache; cache content: %v", v, keys)
	}
	fmt.Print("OK\n")
}

// Find all document with an indexed value.
func ExampleTerm_GetAll_optArgs() {
	// Fetch the row from the database
	res, err := DB("examples").Table("heroes").GetAll("man_of_steel").OptArgs(GetAllOpts{
		Index: "code_name",
	}).Run(session)
	if err != nil {
		fmt.Print(err)
		return
	}
	defer res.Close()

	if res.IsNil() {
		fmt.Print("Row not found")
		return
	}

	var hero map[string]interface{}
	err = res.One(&hero)
	if err != nil {
		fmt.Printf("Error scanning database result: %s", err)
		return
	}
	fmt.Print(hero["name"])

	// Output: Superman
}

func (char *Char) dump(s string) {
	fmt.Print(s, " ");
	for i := 0; i < len(char.field); i++ {
		fmt.Printf("%s:%q ", fieldName[i], char.field[i])
	}
	fmt.Print("\n");
}

func fail(run string, stdout, stderr bytes.Buffer) {
	msg(fmt.Sprintf("Run %v stdout:", run))
	fmt.Print(stdout.String())

	msg(fmt.Sprintf("Run %v stderr:", run))
	fmt.Print(stderr.String())
}

func (server *IpcServer)Connect() chan string {
	session := make(chan string, 0)

	go func(c chan string){
		for{
			request := <-c

			if request == "CLOSE" {
				break
			}

			var req Request
			err := json.Unmarshal([]byte(request), &req)
			if err != nil{
				fmt.Println("Invalid request format:", request)
			}

			resp := server.Handle(req.Method, req.Params)
			b, err := json.Marshal(resp)
			c <- string(b)

		}

		fmt.Print("Session closed.")
	}(session)

	fmt.Print("A new session has been created.")
	return session
}

func printFields(datamap map[string]interface{}, fields string) {
	for k, v := range datamap {
		key := ""
		fieldsslice := strings.Split(fields, ",")
		if fields != "_all" {
			for _, rawfield := range fieldsslice {
				field := strings.TrimSpace(rawfield)
				if strings.EqualFold(field, strings.TrimSpace(k)) {
					key = strings.TrimSpace(k)
				}
			}
		} else {
			key = k
		}

		if key != "" {
			kp := strings.TrimSpace(key)
			fmt.Print(kp)
			fmt.Print(": ")

			if key == "id" {
				fmt.Print(int(v.(float64)))
			} else {
				fmt.Print(v)
			}

			fmt.Print("\n")
		}
	}
}

func Branch(repo *libgit.Repository, args []string) {
	switch len(args) {
	case 0:
		branches, err := repo.GetBranches()
		if err != nil {
			fmt.Fprintln(os.Stderr, "Could not get list of branches.")
			return
		}
		head := getHeadBranch(repo)
		for _, b := range branches {
			if head == b {
				fmt.Print("* ")
			} else {
				fmt.Print("  ")
			}
			fmt.Println(b)
		}
	case 1:
		if head, err := getHeadId(repo); err == nil {
			if cerr := libgit.CreateBranch(repo.Path, args[0], head); cerr != nil {
				fmt.Fprintf(os.Stderr, "Could not create branch: %s\n", cerr.Error())
			}
		} else {
			fmt.Fprintf(os.Stderr, "Could not create branch: %s\n", err.Error())
		}
	default:
		fmt.Fprintln(os.Stderr, "Usage: go-git branch [branchname]")
	}

}

func main() {
	files, _ := filepath.Glob(path + "*")
	namesSlice := []string{}
	for _, basename := range files {
		name := strings.TrimSuffix(basename, filepath.Ext(basename))
		namesSlice = append(namesSlice, strings.Replace(name, path, "", -1))
	}
	fmt.Print("var ourskins = \"")
	fmt.Print(strings.Join(namesSlice, ":"))
	fmt.Println("\";")
	fmt.Println("grabbing source from github")
	return
	/* a work in progress */
	cmd := exec.Command("git", "clone", "https://github.com/electronoob/agarmods.git")
	err := cmd.Start()
	if err != nil {
		fmt.Println("some dome error occured: ", err)
	}
	err = cmd.Wait()
	if err != nil {
		fmt.Println("Command finished with: ", err)
	} else {
		cmd := exec.Command("cp", "agarmods/mods.js", "mods.js")
		cmd.Start()
		cmd.Wait()
		cmd = exec.Command("rm", "-rf", "agarmods")
		cmd.Start()
		cmd.Wait()
	}

}

func main() {
	app := cli.NewApp()
	app.Name = "qunosy"           // ヘルプを表示する際に使用される
	app.Usage = "print arguments" // ヘルプを表示する際に使用される
	app.Version = "0.1.0"         // ヘルプを表示する際に使用される
	absPath, _ := filepath.Abs("../qunosy")
	app.Action = func(c *cli.Context) { // コマンド実行時の処理
		if len(c.Args()) > 1 {
			if c.Args()[0] == "reload" {
				fmt.Println("Reloading qiita log ...")
				reload := exec.Command("sh", absPath+"/reload.sh", c.Args()[1])
				reloadOut, err := reload.Output()
				if err != nil {
					fmt.Println(err.Error())
					return
				}
				fmt.Print(string(reloadOut))
			} else {
				return
			}
		} else {
			qunosy := exec.Command("sh", absPath+"/qunosy.sh")
			qunosyOut, err := qunosy.Output()
			if err != nil {
				fmt.Println(err.Error())
				return
			}
			fmt.Print(string(qunosyOut))
		}
	}
	app.Run(os.Args)
}

func main() {
	//  Socket to receive messages on
	receiver, _ := zmq.NewSocket(zmq.PULL)
	defer receiver.Close()
	receiver.Bind("tcp://*:5558")

	//  Socket for worker control
	controller, _ := zmq.NewSocket(zmq.PUB)
	defer controller.Close()
	controller.Bind("tcp://*:5559")

	//  Wait for start of batch
	receiver.Recv(0)

	//  Start our clock now
	start_time := time.Now()

	//  Process 100 confirmations
	for task_nbr := 0; task_nbr < 100; task_nbr++ {
		receiver.Recv(0)
		if task_nbr%10 == 0 {
			fmt.Print(":")
		} else {
			fmt.Print(".")
		}
	}
	fmt.Println("\nTotal elapsed time:", time.Since(start_time))

	//  Send kill signal to workers
	controller.Send("KILL", 0)

	//  Finished
	time.Sleep(time.Second) //  Give 0MQ time to deliver
}

func printPath(path []int, start int, end int) {
	fmt.Print("[ ")
	for i := start; i <= end; i++ {
		fmt.Print(path[i], " ")
	}
	fmt.Print("]\n")
}

func main() {

	b, err := ioutil.ReadFile("D:\\James\\Downloads\\kargerMinCut.txt")
	if err != nil {
		fmt.Println("Error:", err)
		return
	}
	lines := strings.Split(string(b), "\n")

	arr := make([][]int, 0, len(lines))

	for _, v := range lines {
		textints := strings.Split(v, "\t")
		subarr := make([]int, 0, len(textints))
		for _, w := range textints {
			n, err := strconv.Atoi(w)
			if err != nil {
				fmt.Println("Error yo: ", err)
				continue
			}
			subarr = append(subarr, n)
		}
		arr = append(arr, subarr)
	}
	for _, v := range arr {
		for _, w := range v {
			fmt.Print(w, "\t")
		}
		fmt.Print("\r\n")
	}
}

func main() {
	conn, err := net.Dial("tcp", "127.0.0.1:8081")

	if err != nil {
		fmt.Println("connect to server error!")
		return
	}
	defer conn.Close()

	message, _ := bufio.NewReader(conn).ReadString('\n')
	fmt.Print(message)
	for {
		// read in input from stdin
		reader := bufio.NewReader(os.Stdin)
		fmt.Print("Text to send: ")
		text, _ := reader.ReadString('\n')

		// send to socket
		_, _ = conn.Write([]byte(text))
		//fmt.Fprintf(conn, text + "\n")

		// listen for reply
		message, _ := bufio.NewReader(conn).ReadString('\n')
		if (message == "Good bye\n") {
			break
		} else {
			fmt.Print("Message from server: " + message)
		}
	}
	fmt.Println("conn is closed")
}

func main() {
	var infile = flag.String("infile", "input13.txt", "Input file")
	flag.Parse()

	f, err := os.Open(*infile)
	if err != nil {
		log.Fatal(err)
	}
	rdr := bufio.NewReader(f)
	edges := make(map[string]map[string]int64)
	for {
		line, err := rdr.ReadString('\n')
		if err == io.EOF {
			break
		}
		if err != nil {
			log.Fatal(err)
		}
		AddEdge(edges, line)
	}
	names := make([]string, len(edges))
	i := 0
	for name, _ := range edges {
		names[i] = name
		i++
		if edges["me"] == nil {
			edges["me"] = make(map[string]int64)
		}
		edges["me"][name] = 0
		edges[name]["me"] = 0
	}
	names = append(names, "me")
	fmt.Print("names: ", names, "\n")
	fmt.Print(FindHappiest(edges, names))
}

//A barebones IRC 'client' in the loosest sense of the word.
//Takes input from console. If command starts with a '/', everything after is sent as a raw IRC command.
//Otherwise the first argument is considered the channel/username, and the rest of the line is the message to send
// as a privmsg.
func main() {
	flag.Parse()

	fmt.Print("Simple Text-Based IRC Test Client\n\n")

	fmt.Printf("Connecting to %s . . . \n", *address)

	//LogClientHandler will handle printing out to stdio unless we change the default logger
	client, err := irc.NewClient(*address, *ssl, irc.LogHandler)

	if err != nil {
		log.Fatalf("Error: %s", err.Error())
	}
	fmt.Print("Connected.\n\n")

	client.Send(irc.UserMessage(*username, "host", "domain", "realname"))
	client.Send(irc.NickMessage(*nick))
	client.Send(irc.JoinMessage("#go_test"))

	//Listen for input.
	go readInput(client)

	for { //Continuously read from the client until an error occurs
		_, err := client.Read()
		if err != nil {
			fmt.Printf("ERROR: %s\n", err.Error())
			fmt.Print("Exiting...")
			return
		}
	}
}