MongoDB C#驱动程序->检查字符串是否包含(字符串)列表中的元素

using MongoDB.Driver;
using System;
using System.Collections.Generic;

public class Program
{
    public static void Main(string[] args)
    {
        var connectionString = "mongodb://localhost:27017";
        var client = new MongoClient(connectionString);
        var database = client.GetDatabase("mydb");
        var collection = database.GetCollection<BsonDocument>("mycollection");

        var filter = Builders<BsonDocument>.Filter.In("myfield", new List<string> { "value1", "value2", "value3" });
        var result = collection.Find(filter).ToList();

        foreach (var document in result)
        {
            Console.WriteLine(document.ToString());
        }
    }
}