C#泛型排序,100分送上----------------------------->

Question

假如现在有一个Student实体类，按Student里面的Name排序，排序规则如下，Name里面凡是带有“志”这个字的就排在前面。代码最好能比较精炼。

Answer 1

类实现IComparable接口 

Answer 2

    public class Student :IComparable<Student>,IComparer<Student>
    {
        public string Name;        public int CompareTo(Student t)
        {
            if (this.Name.IndexOf("志")>-1 && t.Name.IndexOf("志")>-1)
                return this.Name.CompareTo(t.Name);
            if (this.Name.IndexOf("志")>-1)
                return -1;
            if (t.Name.IndexOf("志")>-1)
                return 1;            return this.Name.CompareTo(t.Name);
        }        public int Compare(Student a, Student b)
        {
            return a.CompareTo(b);
        }
    }

Answer 3

重载几个操作符
 public class Student :IComparable<Student>,IComparer<Student>
    {
        public string Name;        public int CompareTo(Student t)
        {
            if (this.Name.IndexOf("志")>-1 && t.Name.IndexOf("志")>-1)
                return this.Name.CompareTo(t.Name);
            if (this.Name.IndexOf("志")>-1)
                return -1;
            if (t.Name.IndexOf("志")>-1)
                return 1;            return this.Name.CompareTo(t.Name);
        }        public int Compare(Student a, Student b)
        {
            return a.CompareTo(b);
        }        public static bool operator >(Student a, Student b)
        {
            return (a.CompareTo(b) > 0);
        }        public static bool operator <(Student a, Student b)
        {
            return (a.CompareTo(b) < 0);        }        public static bool operator >=(Student a, Student b)
        {
            return (a.CompareTo(b) >= 0);
        }        public static bool operator <=(Student a, Student b)
        {
            return (a.CompareTo(b) <= 0);        }        public static bool operator ==(Student a, Student b)
        {
            return (a.CompareTo(b) == 0);
        }        public static bool operator !=(Student a, Student b)
        {
            return (a.CompareTo(b) != 0);        }        public override bool Equals(object obj)
        {
            if (obj == null)
                return false;
            if (obj as Student == null)
                return false;            return this == obj as Student;
        }        public override int GetHashCode()
        {
            return this.Name.GetHashCode();
        }
    
    }

Answer 4

using System;
using System.Collections.Generic;class Student
{
  private string name;
  public string Name { get { return name; } }
  public Student(string name) { this.name = name; }
  public override string ToString() { return name; }
}class Program
{
  private static int CompareByNameZhi(Student x, Student y)
  {
    if (x == null)
    {
      if (y == null) return 0;
      else return -1;
    }
    else // x != null
    {
      if (y == null) return 1;
      else
      {
        if (x.Name == y.Name) return 0;
        return y.Name.IndexOf('志') - x.Name.IndexOf('志');
      }
    }
  }
  
  static void Main()
  {
    List<Student> list = new List<Student>();
    list.Add(new Student("张三"));
    list.Add(new Student("志在必得"));
    list.Add(new Student("李四"));
    list.Add(new Student("杨志"));
    list.Sort(CompareByNameZhi);
    foreach (Student x in list)
    {
      Console.WriteLine(x);
    }
  }
}

Answer 5

看看行不行！
    public class student
    {
        public  string Name;
        public  string Gender;
    }页面里面写
        List<student> students = new List<student>
            {
             new  student { Name="是男人", Gender="男" },
             new  student { Name="男人", Gender="男" },
             new  student { Name="是", Gender="男" },
             new  student { Name="人", Gender="男" },
             new  student { Name="是打开的附件人", Gender="男" },
             new  student { Name="地方", Gender="男" },
             new  student { Name="都是人废物", Gender="男" },
             new  student { Name="出色的额", Gender="男" }            };        var resultName = from studentInfo in students
                         where studentInfo.Name.Contains("是")//检索出字为"是"的
                         orderby studentInfo.Name ascending 
                         select studentInfo.Name;        foreach (var item in resultName)  //输出
        {
            Response.Write(item + "<br>");           
        }第一回呀，希望能够帮上你的帮，呵呵