要筛选的LINQ表达式

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

class Program
{
    static void Main()
    {
        List<int> numbers = new List<int> { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

        // 筛选出大于5的数字
        var filteredNumbers = numbers.Where(n => n > 5);

        foreach (var number in filteredNumbers)
        {
            Console.WriteLine(number);
        }
    }
}

// 示例：筛选出大于10的数字
var filteredNumbers = numbers.Where(n => n > 10);

if (filteredNumbers.Any())
{
    foreach (var number in filteredNumbers)
    {
        Console.WriteLine(number);
    }
}
else
{
    Console.WriteLine("没有找到满足条件的数据");
}

// 示例：分页查询
int pageSize = 5;
int pageNumber = 1;

var pagedNumbers = numbers.Skip((pageNumber - 1) * pageSize).Take(pageSize);

foreach (var number in pagedNumbers)
{
    Console.WriteLine(number);
}