[C#] 二進位,十進位 互轉

<%@ Page Language="C#" %>
<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        int i = 10;
        //轉二進位
        String i2 = Convert.ToString(i, 2);
        Response.Write("二進位:"+i2);
        Response.Write("<br/>");
        //轉回十進位
        i = Convert.ToInt32(i2, 2);
        Response.Write("十進位:"+i);
       
        /*轉換的時候不會補0*/
    }
</script>