Csharp 等待限制选项似乎不适用于频道

我正在try System.Threading.Channels个.我注意到限制功能并不像记录的那样起作用.这是一个非常简单的例子:

public class Example
{
    private readonly Channel<int> queue = Channel.CreateBounded<int>(1);

    public void Produce()
    {
        ChannelWriter<int> writer = queue.Writer;
        Console.WriteLine("Writing first value...");
        writer.WriteAsync(7);
        Console.WriteLine("Writing second value...");
        writer.WriteAsync(13);
        Console.WriteLine("Finishing writing...");
        writer.Complete();
    }

    public async Task Consume()
    {
        await Task.Delay(5000);
        ChannelReader<int> reader = queue.Reader;
        await foreach (int value in reader.ReadAllAsync())
            Console.WriteLine(value);
        Console.WriteLine("Done...");
    }
}

以下是我如何运行它:

    var item = new Example();

    var task1 = Task.Run(() => item.Produce());
    var task2 = Task.Run(() => item.Consume());

    Task.WaitAll(task1, task2);

这是我得到的结果:

Writing first value...
Writing second value...
Finishing writing...
7
Done...

Channel的编写者应该等待处理第一个值.但它反而失go 了第二个价值. 你能帮助我了解我错过了什么吗？