ORDER BY C#枚举标记大多数匹配项

public enum OrderStatus
{
    Pending,
    Processing,
    Shipped,
    Delivered,
    Cancelled
}

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

public class Order
{
    public int Id { get; set; }
    public OrderStatus Status { get; set; }
}

public class Program
{
    public static void Main()
    {
        List<Order> orders = new List<Order>
        {
            new Order { Id = 1, Status = OrderStatus.Pending },
            new Order { Id = 2, Status = OrderStatus.Processing },
            new Order { Id = 3, Status = OrderStatus.Shipped },
            new Order { Id = 4, Status = OrderStatus.Delivered },
            new Order { Id = 5, Status = OrderStatus.Pending },
            new Order { Id = 6, Status = OrderStatus.Processing },
            new Order { Id = 7, Status = OrderStatus.Pending }
        };

        // 统计每个状态的订单数量
        var statusCounts = orders.GroupBy(o => o.Status)
                                 .Select(g => new { Status = g.Key, Count = g.Count() })
                                 .OrderByDescending(s => s.Count)
                                 .ThenBy(s => (int)s.Status) // 如果数量相同，按枚举值排序
                                 .ToList();

        // 根据统计结果排序订单列表
        var sortedOrders = orders.OrderBy(o => statusCounts.IndexOf(statusCounts.First(s => s.Status == o.Status)));

        foreach (var order in sortedOrders)
        {
            Console.WriteLine($"Order {order.Id} - Status: {order.Status}");
        }
    }
}