使用Go语言构建灵活可扩展的跨平台应用程序

package main

import (
    "fmt"
    "os/exec"
    "runtime"
)

func main() {
    var cmd *exec.Cmd

    if runtime.GOOS == "windows" {
        // 在Windows上执行的命令
        cmd = exec.Command("echo", "Hello, Windows!")
    } else {
        // 在其他平台上执行的命令
        cmd = exec.Command("echo", "Hello, other platforms!")
    }

    output, err := cmd.Output()
    if err != nil {
        fmt.Println("命令执行失败：", err)
        return
    }

    fmt.Println(string(output))
}

package main

import (
    "fmt"
    "sync"
)

func worker(id int, jobs <-chan int, results chan<- int, wg *sync.WaitGroup) {
    defer wg.Done()

    for j := range jobs {
        fmt.Println("工人", id, "开始处理任务", j)
        // 模拟任务处理
        result := j * 2
        fmt.Println("工人", id, "完成任务", j)

        results <- result
    }
}

func main() {
    numJobs := 10
    numWorkers := 3

    // 创建任务通道和结果通道
    jobs := make(chan int, numJobs)
    results := make(chan int, numJobs)

    // 创建工人等待组
    var wg sync.WaitGroup

    // 启动工人
    for i := 1; i <= numWorkers; i++ {
        wg.Add(1)
        go worker(i, jobs, results, &wg)
    }

    // 发送任务
    for j := 1; j <= numJobs; j++ {
        jobs <- j
    }
    close(jobs)

    // 等待工人完成任务
    wg.Wait()

    // 输出结果
    close(results)
    for result := range results {
        fmt.Println("结果：", result)
    }
}

package main

import (
    "fmt"
    "plugin"
)

type Greeter interface {
    Greet(name string) string
}

func main() {
    p, err := plugin.Open("plugin.so")
    if err != nil {
        fmt.Println("插件加载失败：", err)
        return
    }

    symGreeter, err := p.Lookup("Greeter")
    if err != nil {
        fmt.Println("Greeter接口查找失败：", err)
        return
    }

    greeter, ok := symGreeter.(Greeter)
    if !ok {
        fmt.Println("Greeter接口类型转换失败")
        return
    }

    fmt.Println(greeter.Greet("World"))
}