将相对路径转换为绝对路径C#

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string relativePath = "..\\example.txt";
        string absolutePath = Path.GetFullPath(relativePath);
        Console.WriteLine("绝对路径: " + absolutePath);
    }
}

using System;

class Program
{
    static void Main()
    {
        string baseUrl = "https://www.example.com/";
        string relativeUrl = "path/to/resource.html";
        Uri absoluteUri = new Uri(new Uri(baseUrl), relativeUrl);
        Console.WriteLine("绝对URL: " + absoluteUri.AbsoluteUri);
    }
}