使用Linq返回最大计数列表

using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
    public static void Main()
    {
        // 创建一个包含学生信息的集合
        List<Student> students = new List<Student>()
        {
            new Student { Name = "Alice", Class = "A" },
            new Student { Name = "Bob", Class = "B" },
            new Student { Name = "Charlie", Class = "A" },
            new Student { Name = "David", Class = "B" },
            new Student { Name = "Eve", Class = "C" },
            new Student { Name = "Frank", Class = "C" },
            new Student { Name = "Grace", Class = "A" }
        };

        // 使用Linq返回最大计数列表
        var maxCountList = students
            .GroupBy(s => s.Class) // 按照班级进行分组
            .Select(g => new { Class = g.Key, Count = g.Count() }) // 计算每个分组的计数
            .OrderByDescending(g => g.Count) // 按照计数降序排序
            .First(); // 获取计数最大的分组

        var resultList = students
            .Where(s => s.Class == maxCountList.Class) // 选择最大计数的分组中的元素
            .ToList(); // 转换为列表

        // 输出结果
        Console.WriteLine("最大计数的班级是：" + maxCountList.Class);
        Console.WriteLine("最大计数的班级人数是：" + maxCountList.Count);
        Console.WriteLine("最大计数的班级学生列表：");
        foreach (var student in resultList)
        {
            Console.WriteLine(student.Name);
        }
    }
}

public class Student
{
    public string Name { get; set; }
    public string Class { get; set; }
}