// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002130/string-urldecodetobytes

​

// @nuget: Z.ExtensionMethods

​

using System;

​

public class Program

{

    public static string FileName = "test.txt";

    public static void Main()

    {

        string urlString = "http%3a%2f%2ftest%23+space+123%2ftext%3fvar%3dval%26another%3dtwo";

        //C# Extension Method: String - UrlDecodeToBytes

        var bytes = urlString.UrlDecodeToBytes();

        var file = FileName.ToFileInfo();

        // C# Extension Method: FileInfo - WriteAllBytes

        file.WriteAllBytes(bytes);

​

        Console.WriteLine(file.ReadAllText());

    }

}

​