使用Go和Goroutines实现高效的并发数据结构

package main

import (
    "fmt"
    "sync"
)

type Counter struct {
    value int
    mutex sync.Mutex
}

func (c *Counter) Increment() {
    c.mutex.Lock()
    c.value++
    c.mutex.Unlock()
}

func (c *Counter) GetValue() int {
    c.mutex.Lock()
    defer c.mutex.Unlock()
    return c.value
}

func main() {
    counter := Counter{value: 0}

    wg := sync.WaitGroup{}
    for i := 0; i < 1000; i++ {
        wg.Add(1)
        go func() {
            counter.Increment()
            wg.Done()
        }()
    }

    wg.Wait()

    fmt.Println(counter.GetValue())
}

package main

import (
    "fmt"
    "sync"
)

type Queue struct {
    items chan string
    mutex sync.Mutex
}

func NewQueue(size int) *Queue {
    return &Queue{
        items: make(chan string, size),
    }
}

func (q *Queue) Enqueue(item string) {
    q.mutex.Lock()
    defer q.mutex.Unlock()
    q.items <- item
}

func (q *Queue) Dequeue() string {
    q.mutex.Lock()
    defer q.mutex.Unlock()
    return <-q.items
}

func main() {
    queue := NewQueue(10)

    wg := sync.WaitGroup{}
    for i := 0; i < 100; i++ {
        wg.Add(1)
        go func(index int) {
            queue.Enqueue(fmt.Sprintf("item-%d", index))
            wg.Done()
        }(i)
    }

    wg.Wait()

    for i := 0; i < 100; i++ {
        fmt.Println(queue.Dequeue())
    }
}