asp.net 页面空间重置按钮

  protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
          // Response.Write("Init");
        }
        else
        {
         //   Response.Write("Post Back");
        }


    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        Response.Redirect(Request.RawUrl);

    }