using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace First_exam { class Student { /// <summary> ///学生姓名的字段和属性 /// </summary> private string _Name; public string Name { ge…
一.Linq有两种语法: 1. 方法语法 2. 查询语法 下面举个例子看看这两种方法的区别 比如现在有一个学生类 public class student { public string username { get; set; } public int age { get; set; } public string sex { get; set; } } 我们通过一个方法来添加很多同学 public IList<student> GetStu(int n) { IList<stud…
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> <TITLE> New Document </TITLE> <META NAME="Generator" CONTENT="EditPlus"> <META NAME="Author" CONTEN…
var cus = from u in context.IPPhoneInfo join r in context.Organization on u.OrgStructure equals r.MinusOraID where r.ISfalse.Equals(true) && u.IsFault.Equals(false) select new { Organizationid = r.Organizationid, Organization…
从自己的印象笔记里面整理出来,排版欠佳.见谅! 1.LINQ: 语言集成查询(Language Integrated Query) 实例: var q= from c in categories join p in products on c equals p.Category into ps select new{Category=c, Products=ps}; 2.LINQ 类型 LINQ to Objects(或称LINQ to Collection),这是LIN…