1、MartialArtsMaster类。 class MartialArtsMaster { public int Id { get; set; } public string Name { get; set; } public int Age { get; set; } public string Menpai { get; set; } public string Kongfu { get; set; } public int Level { get; set; } }
2、 class Program { static public List sd; static void Main(string[] args) { //初始化武林高手 var masterList = new List(){ new MartialArtsMaster(){ Id = 1, Name = “黄蓉”, Age = 18, Menpai = “丐帮”, Kongfu = “打狗棒法”, Level = 9 }, new MartialArtsMaster(){ Id = 2, Name = “洪七公”, Age = 70, Menpai = “丐帮”, Kongfu = “打狗棒法”, Level = 10 }, new MartialArtsMaster(){ Id = 3, Name = “郭靖”, Age = 22, Menpai = “丐帮”, Kongfu = “降龙十八掌”,Level = 10 }, new MartialArtsMaster(){ Id = 4, Name = “任我行”, Age = 50, Menpai = “明教”, Kongfu = “葵花宝典”, Level = 1 }, new MartialArtsMaster(){ Id = 5, Name = “东方不败”,Age = 35, Menpai = “明教”, Kongfu = “葵花宝典”, Level = 10 }, new MartialArtsMaster(){ Id = 6, Name = “林平之”, Age = 23, Menpai = “华山”, Kongfu = “葵花宝典”, Level = 7 }, new MartialArtsMaster(){ Id = 7, Name = “岳不群”, Age = 50, Menpai = “华山”, Kongfu = “葵花宝典”, Level = 8 }, new MartialArtsMaster() { Id = 8, Name = “令狐冲”, Age = 23, Menpai = “华山”, Kongfu = “独孤九剑”, Level = 10 }, new MartialArtsMaster() { Id = 9, Name = “梅超风”, Age = 23, Menpai = “桃花岛”, Kongfu = “九阴真经”, Level = 8 }, new MartialArtsMaster() { Id =10, Name = “黄药师”, Age = 23, Menpai = “梅花岛”, Kongfu = “弹指神通”, Level = 10 }, new MartialArtsMaster() { Id = 11, Name = “风清扬”, Age = 23, Menpai = “华山”, Kongfu = “独孤九剑”, Level = 10 } }; //使用linq查询。 var res = from m in masterList//from后面设置查询的集合 where m.Level > 8//where后面跟上查询的条件。 select m.Name;//表示m的结果结合返回。 foreach (var item in res) { Console.WriteLine(item); } Console.ReadKey(); } }
3、结果： 
