【转】关于List排序的时效性
2015-03-22 16:43 snys98 阅读(293) 评论(0) 编辑 收藏 举报不多说了，就是说明List排序的时效性，仅仅用来备忘，改造自： http://blog.csdn.net/wanzhuan2010/article/details/6205884，感谢原作者
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Threading; 6 namespace ConsoleApplication1 7 { 8 class Program 9 { 10 static void Main(string[] args) 11 { 12 List<Customer> listCustomer = new List<Customer>(); 13 listCustomer.Add(new Customer { name = "客户1", id = 0 }); 14 listCustomer.Add(new Customer { name = "客户2", id = 1 }); 15 listCustomer.Add(new Customer { name = "客户3", id = 5 }); 16 listCustomer.Add(new Customer { name = "客户4", id = 3 }); 17 listCustomer.Add(new Customer { name = "客户5", id = 4 }); 18 listCustomer.Add(new Customer { name = "客户6", id = 5 }); 19 ///升序 20 List<Customer> listCustomer1 = listCustomer.OrderBy(s => s.id).ToList<Customer>(); 21 //降序 22 List<Customer> listCustomer2 = listCustomer.OrderByDescending(s => s.id).ToList<Customer>(); 23 //Linq排序方式 24 List<Customer> listCustomer3 = (from c in listCustomer 25 orderby c.id descending //ascending 26 select c).ToList<Customer>(); 27 //此处再加入新的list成员 28 listCustomer1.Add(new Customer { name = "客户7", id = 6 }); 29 listCustomer2.Add(new Customer { name = "客户7", id = 6 }); 30 listCustomer3.Add(new Customer { name = "客户7", id = 6 }); 31 // 32 Console.WriteLine("List.OrderBy方法升序排序"); 33 foreach (Customer customer in listCustomer1) 34 { 35 Console.WriteLine(customer.name); 36 } 37 Console.WriteLine("List.OrderByDescending方法降序排序"); 38 foreach (Customer customer in listCustomer2) 39 { 40 Console.WriteLine(customer.name); 41 } 42 Console.WriteLine("Linq方法降序排序"); 43 foreach (Customer customer in listCustomer3) 44 { 45 Console.WriteLine(customer.name); 46 } 47 Console.ReadKey(); 48 } 49 } 50 class Customer 51 { 52 public int id { get; set; } 53 public string name { get; set; } 54 } 55 }
结果展示：（新加入的成员没有参与排序）
