webform1.aspx

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Linq;

namespace test13_1
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            int[] numbers = {91,72,83,94,75,86,97,88,79};
            Response.Write("学生的数学成绩如下：<br>");
            foreach (int n in numbers)
            {
                Response.Write(n);
                Response.Write("&nbsp;");
            }
            Response.Write("<br>");

            Response.Write("以上学生成绩中超过80分的有：<br>");
            var numbersQuery = from num in numbers where num > 80 select num;
            foreach (int n2 in numbersQuery)
            {
                Response.Write(n2 + "<br>");
            }
        }
    }
}