为什么我的Golang Workerpool忽略工作？

I am trying to create a threadpool of workers that do jobs.

This seems to working fine, but it if I, for instance, input 1-6. It won't print out six.

Can someone explain why and hopefully provide a fix for me?

// Golang Workerpool

func worker(id int, jobs <-chan string) {
    fmt.Println("Worker", id, "initilized!")
        for {
            s := <- jobs
            time.Sleep(2 * time.Second)
            fmt.Println("Worker", id, "said:", s);
    }
}

func main() {
    // In order to use our pool of workers we need to send
    // them work and collect their results. We make 2
    // channels for this.
    jobs := make(chan string)

    // This starts up 3 workers, initially blocked
    // because there are no jobs yet.
    for w := 1; w <= 3; w++ {
        go worker(w, jobs)
    }

    for {
        reader := bufio.NewReader(os.Stdin)
        text, _ := reader.ReadString('
')
        jobs <- text
    }
}

Apparently making the channel a buffered channel helped.

jobs := make(chan string, 3)

Thanks guys

Move reader := bufio.NewReader(os.Stdin) to just before the for loop

I would guess if this is run repeatedly the waiting data in stdin is lost