把下面这段MATLAB代码转换为C#语言function LossGain = CalaulateWindowGain(WindowLength,b,WindowType) %计算常见加窗技术对信号失配引起的能量损失 % WindowLength = 1001;%加窗的长度 Loss = 0;%加窗的信噪比损失 % b = 1;%加窗的调制深度 switch WindowType case 'Hanning'%w(n)=0.5(1?cos(2πn/N)),0≤n≤N N = WindowLength - 1; for i = 1:N Loss = Loss + abs((0.5*(1 - cos(2pii/N))).^b); end LossGain = Loss/N.^2; case 'Hamming'%w(n)=0.54?0.46cos(2πn/N),0≤n≤N N = WindowLength - 1; for i = 1:N Loss = Loss + abs((0.54 - 0.46cos(2pi*i/N)).^b); end LossGain = Loss/N.^2; otherwise LossGain = 5.0e-4; end

在C#语言中，可以将MATLAB代码转换为以下形式的函数：

using System;

public class Program
{
    public static double CalculateWindowGain(int WindowLength, int b, string WindowType)
    {
        double Loss = 0;
        int N;

        switch (WindowType)
        {
            case "Hanning":
                N = WindowLength - 1;
                for (int i = 1; i <= N; i++)
                {
                    Loss += Math.Abs(Math.Pow((0.5 * (1 - Math.Cos(2 * Math.PI * i / N))), b));
                }
                return Loss / Math.Pow(N, 2);
            
            case "Hamming":
                N = WindowLength - 1;
                for (int i = 1; i <= N; i++)
                {
                    Loss += Math.Abs(Math.Pow((0.54 - 0.46 * Math.Cos(2 * Math.PI * i / N)), b));
                }
                return Loss / Math.Pow(N, 2);
            
            default:
                return 5.0e-4;
        }
    }

    public static void Main()
    {
        int WindowLength = 1001;
        int b = 1;
        string WindowType = "Hanning";
        
        double LossGain = CalculateWindowGain(WindowLength, b, WindowType);
        Console.WriteLine(LossGain);
    }
}

这样就将MATLAB代码转换为了C#语言函数。在Main方法中，我们调用了CalculateWindowGain函数，并输出计算结果。请注意，在C#中使用Math类来执行数学计算，并使用switch-case语句来处理不同的WindowType情况。