后台C#代码 using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class _Default : System.Web.UI.Page { protectedvoid Page_Load(object sender, EventArgs e) { } protectedvoid Button1_Click(object sender, EventArgs e) { if (HiddenField1.Value ==string.Empty)//判断如果现在隐藏字段的值为空 HiddenField1.Value ="代表川哥向你问好！"; else HiddenField1.Value ="这是第二次按了"; Response.Write(HiddenField1.Value.ToString());//在屏幕上打印出隐藏字段的值 } }
前台HTML代码
}
}
