我可以使字符串表现得像参考类型吗？

public class StringReference
{
    public string Value { get; set; }

    public StringReference(string value)
    {
        Value = value;
    }

    public void Append(string text)
    {
        Value += text;
    }
}

public static void Main(string[] args)
{
    StringReference strRef = new StringReference("Hello, ");
    AppendString(strRef);
    Console.WriteLine(strRef.Value); // Output: Hello, World!
}

public static void AppendString(StringReference strRef)
{
    strRef.Append("World!");
}