インテリジェントなセキュリティ開発に Go 言語を使用するにはどうすればよいですか?

func main() {
    img, err := gocv.VideoCaptureDevice(0)
    if err != nil {
        fmt.Printf("Error opening capture device: %v
", 0)
        return
    }
    defer img.Close()

    gray := gocv.NewMat()
    defer gray.Close()

    faces := gocv.NewMat()
    defer faces.Close()

    classifier := gocv.NewCascadeClassifier()
    defer classifier.Close()

    if classifier.Load("haarcascade_frontalface_default.xml") {
        fmt.Println("Classifier loaded")
    }

    for {
        if ok := img.Read(&frame); !ok {
            fmt.Printf("Device closed: %v
", 0)
            return
        }
        if img.Empty() {
            continue
        }

        gocv.CvtColor(frame, &gray, gocv.ColorBGRToGray)
        classifier.DetectMultiScale(gray, &faces, 1.1, 3, 0, image.Point{X: 0, Y: 0}, image.Point{X: 0, Y: 0})
        for i, face := range faces.Rows() {
            gocv.Rectangle(&frame, image.Rect(face.GetIntAt(0), face.GetIntAt(1), face.GetIntAt(0)+face.GetIntAt(2), face.GetIntAt(1)+face.GetIntAt(3)), color.RGBA{255, 0, 0, 0}, 2)
            fmt.Println("Face found:", i)
        }

        window.IMShow(frame)
        window.WaitKey(1)
    }
}

func main() {
    http.HandleFunc("/stream", func(w http.ResponseWriter, r *http.Request) {
        setHeaders(w)

        conn, _, err := w.(http.Hijacker).Hijack()
        checkError(err)
        defer conn.Close()

        fmt.Fprintf(conn, "HTTP/1.1 200 OK
")
        fmt.Fprintf(conn, "Content-Type: multipart/x-mixed-replace; boundary=myboundary
")
        fmt.Fprintf(conn, "
")

        c := make(chan []byte)
        go func() {
            for {
                frame, err := getFrame()
                if err != nil {
                    log.Println(err)
                    continue
                }
                c <- frame
            }
        }()

        for {
            select {
            case frame := <-c:
                fmt.Fprintf(conn, "--myboundary
")
                fmt.Fprintf(conn, "Content-Type: image/jpeg
")
                fmt.Fprintf(conn, "Content-Length: %d
", len(frame))
                fmt.Fprintf(conn, "
")
                conn.Write(frame)
            }
        }
    })

    log.Println("Listening...")
    err := http.ListenAndServe(":8080", nil)
    checkError(err)
}

func main() {
    defer gpio.Close()

    // 设置针脚模式
    pir, err := gpio.OpenPin(4, gpio.ModeInput)
    checkError(err)
    defer pir.Close()

    buzzer, err := gpio.OpenPin(17, gpio.ModeOutput)
    checkError(err)
    defer buzzer.Close()

    // 监控针脚输入状态变化
    err = pir.BeginWatch(gpio.EdgeRising, func() {
        log.Println("Motion detected!")
        buzzer.Set()
        time.Sleep(time.Second)
        buzzer.Clear()
    })
    checkError(err)

    // 一直运行，直到程序退出
    select {}
}