这是一个能够在.NET 4.0项目中使用async和await的程序包.

It is a package to be able to use async and await in .NET 4.0 projects.

但是要注意.我遇到了无法在.NET 4.5项目中使用这些库的问题.但这是在.NET 4.5的初始版本之前.因此，可以解决此问题.

But be aware. I encountered the problem where these libraries cannot be used in .NET 4.5 projects. But this was before the initial release of .NET 4.5. Therefore this problem might be resolved.