使用Linq对MultiLevel数据进行排序

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

public class Node
{
    public int Id { get; set; }
    public string Name { get; set; }
    public int Level { get; set; }
}

public class Program
{
    public static void Main()
    {
        List<Node> nodes = new List<Node>
        {
            new Node { Id = 1, Name = "Node 1", Level = 1 },
            new Node { Id = 2, Name = "Node 2", Level = 2 },
            new Node { Id = 3, Name = "Node 3", Level = 1 },
            new Node { Id = 4, Name = "Node 4", Level = 3 },
            new Node { Id = 5, Name = "Node 5", Level = 2 },
            new Node { Id = 6, Name = "Node 6", Level = 1 }
        };

        var sortedNodes = nodes.OrderBy(node => node.Level).ThenBy(node => node.Id);

        foreach (var node in sortedNodes)
        {
            Console.WriteLine($"Id: {node.Id}, Name: {node.Name}, Level: {node.Level}");
        }
    }
}