C#語言怎麼沒有直接像vb6.0和vb.net語言一樣optional選擇性參數呢？

雖然4.0有了新特性。

Named And Optional Arguments - 具名引數和選擇性參數

public partialclass NamedAndOptionalArguments : System.Web.UI.Page
    {
        protectedvoid Page_Load(object sender, EventArgs
e)
        {
            Write("hello");
            Write("hello","webabcd");
            Write("hello", p3:false, p2:"webabcd");
        }

        privatevoid Write(string p1,string
p2 =
"p2",bool p3=
true)
        {
            Response.Write(string.Format("p1:{0}; p2:{1}; p3:{2}",
p1, p2, p3.ToString()));
            Response.Write("<br />");
        }
    }
個人改進還是沒vb語言來的直接!