classes_del.cshtml

@{
    Layout = "~/_xuejiLayout.cshtml";
    if (Session["name"] == null || Session["username"] == null)
    {
        Response.Redirect("~/#.cshtml");
    }
    var id = Request.QueryString["id"];
    var db = Database.Open("ctXueji");
    var list = "select *from classes inner join majors on classes.majors_id = majors.id inner join teachers on classes.teachers_id = teachers.id where classes.id ="+id;
    var row = db.QuerySingle(list, id);
    if (IsPost)
    {
        var cid = Request.Form["id"];
        var delete = "delete from classes where id =@0";
        db.Execute(delete, cid);
        Response.Redirect("~/classes");
    }
}
<form method="post">
    <dl>
        <dt class="page-header">班级：@row.classes_year@row.majors_name</dt>
        <dt class="page-header">指导员：@row.teachers_name</dt>
    </dl>
    <input type="hidden" id="id" name="id" value=@id>
    <input class="btn btn-primary" type="submit" value="确认删除" />
</form>