一句话概括：Python 3.7 中 asyncio 的一些新特性和改进
这篇文章较完整的介绍了 Python 3.7 中 asyncio 的一些新特性。 比较有趣的是文章结尾有句话： I expect lots of churn in this area in the years to come.。 想造轮子是不是应该把握这个时候？
The release of Python 3.7 introduced a number of changes into the async world. There are a lot of quality-of-life improvements, some affect compatibility across versions and some are new features to help manage concurrency better. This article will go over the changes, their implications and the things you’ll want to watch out for if you’re a maintainer. Some may even affect you even if you don’t use asyncio.
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