在Go语言中如何解决并发任务的动态扩容问题？

package main

import (
    "fmt"
    "sync"
    "time"
)

type Pool struct {
    queue chan Job
    wg    sync.WaitGroup
}

type Job struct {
    id     int
    result string
}

func NewPool(maxWorkers int) *Pool {
    pool := &Pool{
        queue: make(chan Job),
    }

    for i := 0; i < maxWorkers; i++ {
        go pool.worker(i)
    }

    return pool
}

func (p *Pool) worker(id int) {
    for job := range p.queue {
        fmt.Printf("Worker %d processing job %d
", id, job.id)
        time.Sleep(time.Second) // 模拟任务耗时
        job.result = fmt.Sprintf("Job %d processed by worker %d", job.id, id)
        p.wg.Done()
    }
}

func (p *Pool) AddJob(job Job) {
    p.wg.Add(1)
    p.queue <- job
}

func (p *Pool) Wait() {
    p.wg.Wait()
    close(p.queue)
}

func main() {
    pool := NewPool(3)

    for i := 1; i <= 10; i++ {
        job := Job{id: i}
        pool.AddJob(job)
    }

    pool.Wait()
}