C# List.Sort()

List.Sort()：对List所有元素按条件进行排序。

 1 using System.Collections;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using UnityEngine;
 5 
 6 public class Test : MonoBehaviour
 7 {
 8     /// <summary>
 9     /// 所有学生
10     /// </summary>
11     public List<Student> students = new List<Student>();
12 
13     private void Start()
14     {
15         //根据年纪从大到小重新排序
16         SortOldToYoung();
17         foreach (var student in students)
18         {
19             Debug.Log(student.ToString());
20         }
21     }
22     /// <summary>
23     /// 根据年纪从大到小重新排序
24     /// </summary>
25     void SortOldToYoung()
26     {
27         //写法1
28         /*students.Sort((x, y) =>
29         {
30             return (y.age - x.age);
31         });*/
32 
33         //写法2
34         students.Sort((x, y) => (y.age - x.age));
35 
36         //写法3
37         //students.Sort((x, y) => y.age > x.age ? 0 : -1);
38     }
39 }
40 /// <summary>
41 /// 学生信息
42 /// </summary>
43 [System.Serializable]
44 public class Student
45 {
46     /// <summary>
47     /// 名字
48     /// </summary>
49     public string name;
50     /// <summary>
51     /// 年龄
52     /// </summary>
53     public int age;
54     /// <summary>
55     /// 学号
56     /// </summary>
57     public int id;
58     /// <summary>
59     /// 性别
60     /// </summary>
61     public Gender gender;
62 
63     public override string ToString()
64     {
65         return string.Format("{0}，{1}，{2}，{3}", name, age, id, gender == Gender.Female ? "女" : "男");
66     }
67 }
68 /// <summary>
69 /// 性别
70 /// </summary>
71 public enum Gender
72 {
73     /// <summary>
74     /// 女性
75     /// </summary>
76     Female,
77     /// <summary>
78     /// 男性
79     /// </summary>
80     Male,
81 }