Linq

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Linq
{
    class Program
    {
        static void Main(string[] args)
        {
            DataClassDataContext data = new DataClassDataContext();//实例化我们建的DataClass

            //----------------------------------增-----------------------------------//
            //Students stu = new Students();
            //stu.ID = 108;
            //stu.Phone = "1528809668";
            //stu.StuName = "flt";
            //stu.Address = "吴川";
            //stu.City = "湛江";
            //data.Students.InsertOnSubmit(stu);
            //data.SubmitChanges();


            //----------------------------------查-----------------------------------//
            //var student = from s in data.Students
            //              where s.ID==123
            //              select s;
            //foreach(var s in student)
            //{
            //    Console.WriteLine(s.ID);
            //    Console.WriteLine(s.StuName);
            //    Console.WriteLine(s.Phone);
            //    Console.WriteLine(s.Address);
            //    Console.WriteLine(s.City);
            //}


            //----------------------------------删-----------------------------------//
            //var student = from s in data.Students
            //              where s.ID == 108
            //              select s;
            //data.Students.DeleteAllOnSubmit(student);
            //data.SubmitChanges();


            //----------------------------------改-----------------------------------//
            //var student = from s in data.Students
            //              where s.ID == 108
            //              select s;
            //foreach(Students stu in student)
            //{
            //    stu.Phone = "123456789";
            //    stu.StuName = "flt";
            //    stu.Address = "吴川";
            //    stu.City = "湛江";
            //}
            //data.SubmitChanges();


            Console.WriteLine("执行完毕！");
            Console.ReadLine();
        }
    }
}