F sharp代码示例

好的，下面是一个 F# 示例代码：

// 这是 F# 程序的第一行注释

// 定义一个函数，名为 "add"，它接受两个数字参数 x 和 y，并返回它们的和
let add x y = x + y

// 调用函数并打印输出
printfn "3 + 4 = %d" (add 3 4)

这段代码会输出 "3 + 4 = 7"。

相关问题

F sharp实现平衡二叉树算法的代码

首先，F# 是一种函数式编程语言，可以在 .NET 平台上运行。如果你想在 F# 中实现平衡二叉树算法，你需要了解这种数据结构的基本知识，然后使用递归和模式匹配来实现它。

下面是一个 F# 的平衡二叉树示例代码，它实现了插入、查找、删除和遍历操作：

type BinaryTree<'T> =
    | Leaf
    | Node of BinaryTree<'T> * 'T * BinaryTree<'T> * int

type BinarySearchTree<'T when 'T : comparison> =
    | Leaf
    | Node of BinarySearchTree<'T> * 'T * BinarySearchTree<'T> * int

let rec insert value tree =
    match tree with
    | Leaf -> Node(Leaf, value, Leaf, 1)
    | Node(left, nodeValue, right, _) ->
        if value < nodeValue then
            let newLeft = insert value left
            Node(newLeft, nodeValue, right, newLeft.Height + 1)
        else
            let newRight = insert value right
            Node(left, nodeValue, newRight, newRight.Height + 1)

let rec find value tree =
    match tree with
    | Leaf -> false
    | Node(left, nodeValue, right, _) ->
        if value = nodeValue then true
        elif value < nodeValue then find value left
        else find value right

let rec deleteMin tree =
    match tree with
    | Leaf -> Leaf
    | Node(Leaf, value, right, _) -> right
    | Node(left, value, right, _) ->
        let newLeft = deleteMin left
        Node(newLeft, value, right, newLeft.Height + 1)

let rec deleteMax tree =
    match tree with
    | Leaf -> Leaf
    | Node(left, value, Leaf, _) -> left
    | Node(left, value, right, _) ->
        let newRight = deleteMax right
        Node(left, value, newRight, newRight.Height + 1)

let rec delete value tree =
    match tree with
    | Leaf -> Leaf
    | Node(left, nodeValue, right, _) ->
        if value = nodeValue then
            match left, right with
            | Leaf, Leaf -> Leaf
            | Leaf, _ -> right
            | _, Leaf -> left
            | _, _ ->
                let minValue = minValue right
                let newRight = deleteMin right
                Node(left, minValue, newRight,

C Sharp代码实现Gabor滤波器

可以调用Emgu CV库中的Gabor滤波器实现。以下是示例代码：

using Emgu.CV;

using Emgu.CV.CvEnum;

using Emgu.CV.Structure;

...

// 定义Gabor核的参数

double lambda = 4;

double theta = Math.PI / 4;

double psi = Math.PI / 4;

double sigma = 2;

double gamma = 0.5;

// 调用Gabor滤波器

Image<Gray, float> srcImg = ...

Image<Gray, float> dstImg = new Image<Gray, float>(srcImg.Size);

CvInvoke.cvFilter2D(srcImg.Ptr, dstImg.Ptr, CvEnum.CV_DEPTH.CV_32F,

CvInvoke.cvGetGaborKernel(new Size(9, 9), sigma, theta, lambda, gamma, psi, Emgu.CV.CvEnum.GABOR_TYPE.GABOR_REAL),

new Point(-1, -1));

// 显示结果

ImageViewer.Show(dstImg, "Gabor Filtered Image");