如何在.NET ConcurrentDictionary中实现remove_if功能

using System;
using System.Collections.Concurrent;
using System.Linq;

class Program
{
    static void Main()
    {
        ConcurrentDictionary<int, string> dictionary = new ConcurrentDictionary<int, string>();

        // 添加一些测试数据
        dictionary.TryAdd(1, "A");
        dictionary.TryAdd(2, "B");
        dictionary.TryAdd(3, "C");
        dictionary.TryAdd(4, "D");
        dictionary.TryAdd(5, "E");

        // 使用LINQ的Where方法筛选出需要移除的键值对
        var itemsToRemove = dictionary.Where(pair => pair.Value == "B" || pair.Value == "D");

        // 逐个移除筛选出的键值对
        foreach (var item in itemsToRemove)
        {
            dictionary.TryRemove(item.Key, out _);
        }

        // 输出剩余的键值对
        foreach (var item in dictionary)
        {
            Console.WriteLine($"Key: {item.Key}, Value: {item.Value}");
        }
    }
}