最近接手同事C#代码，（话说我一个C++程序员干嘛做这种事情，可能我是韭菜吧），为了能够承接，特地去拜读了《C#图解教程》，入门还是不错的。

写代码嘛，异步编程肯定少不了，下面就是利用C# BlockingCollection功能模块编写的 生产者/消费者 demo（韭菜要自觉生产，提供给多人消费）。

using System;
using System.Threading;
using System.Threading.Tasks;
using System.Collections.Concurrent;
namespace ConsoleApp2
    class Collection
        public static BlockingCollection<int> bc = new BlockingCollection<int>();
    class Producer
        public static async Task Producer_fun()
            await Task.Run(() => {
                for (int i = 0; i < 100; i++)
                    Thread.Sleep(50);
                    Collection.bc.Add(i);
                    Console.WriteLine($"韭菜生产 {i}");
                Collection.bc.CompleteAdding();
    class Consumer
        public static int n = 0;
        public static async Task Consumer_fun(string str)
            await Task.Run(() =>
                while(true){
                    Thread.Sleep(200);
                    if (Collection.bc.TryTake(out n))
                        Console.WriteLine($"{str}掠夺 {n}");
                        if (Collection.bc.IsCompleted)
                            break;
    class Program
        static void Main(string[] args)
            Task t1 = Producer.Producer_fun();
            Task t2 = Consumer.Consumer_fun("JD");
            Task t3 = Consumer.Consumer_fun("ali");
            Task t4 = Consumer.Consumer_fun("QQ");
            Task t5 = Consumer.Consumer_fun("apple");
            Task.WaitAll(t1, t2, t3,t4,t5);
相对于C++来说，C#的BlockingCollection（生产/消费）使用真的非常方便，还线程安全。。。。