using System.Collections.Generic;
using System.Linq;
namespace DailyCoding.Code
{
public class _20210603_1
{
public void Run()
{
/*
* Sort 方法对本集合根据指定的比较器进行排序
*/
List<_20210603_1_Model> sortList = new List<_20210603_1_Model>();
sortList.Add(new _20210603_1_Model { Age = 22, Money = 33.13, Name = "N2" });
sortList.Add(new _20210603_1_Model { Age = 33, Money = 33.19, Name = "N3" });
sortList.Add(new _20210603_1_Model { Age = 11, Money = 33.12, Name = "N1" });
sortList.Sort((x, y) =>
{
// 根据 Money 降序排序
if (x.Money > y.Money)
return -1; // 升序返回 1;降序返回 -1 ;
else if (x.Money == y.Money)
return 0;
else
return 1; // 升序返回 1;降序返回 -1 ;
});
/*
* OrderBy/OrderByDescending 方法对原集合无影响,返回新的有序集合
*/
var newList = sortList.OrderBy(t => t.Age); // 根据Age升序排序
newList = sortList.OrderByDescending(t => t.Money); // 根据Money降序排序
}
}
public class _20210603_1_Model
{
public int Age { get; set; }
public double Money { get; set; }
public string Name { get; set; }
}
}