现在，让我们来看一下使用异步编程模型的等效代码。
Now let's take a look at the equivalent using the asynchronous programming model.
使用异步编程模型能帮助你让应用程序更具伸缩性，而异步工作流可以帮你更容易地完成这样的工作。
Using the asynchronous programming model can help make your applications more scalable and the asynchronous workflows can help you do this more easily.
另一个经常讨论的主题是，服务是同步的还是异步的，与编程模型相比，使用的通信协议充当什么角色。
Another subject of frequent debate is whether a service is synchronous or asynchronous, and what role the used communication protocol plays compared to the programming model.
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