如何在.Net中以编程方式确定我是否具有使用C#的写权限？

using System;
using System.IO;
using System.Security.Permissions;

public class FileWritePermission
{
    public static void Main()
    {
        try
        {
            FileIOPermission permission = new FileIOPermission(FileIOPermissionAccess.Write, "文件路径");
            permission.Demand();

            Console.WriteLine("您具有使用C#的写权限。");
        }
        catch (SecurityException)
        {
            Console.WriteLine("您没有使用C#的写权限。");
        }
    }
}

using System;
using System.IO;

public class FileWritePermission
{
    public static void Main()
    {
        try
        {
            string filePath = "文件路径";
            string content = "测试内容";

            File.WriteAllText(filePath, content);

            Console.WriteLine("您具有使用C#的写权限。");
        }
        catch (UnauthorizedAccessException)
        {
            Console.WriteLine("您没有使用C#的写权限。");
        }
    }
}