It's just a way to communicate with the coroutine scheduler without using global (or thread-local) variables.
它只是一种方法与协同调度通信而不需要使用全局(或局部)变量。
The thing to notice about this wrapper is that each generator/coroutine yields a tuple that contains its intended branch destination.
关于这个包装器要注意的一点是，每个生成器／协同程序都会生成一个包含它的预期分支目标的元组。
There are of course efficient green thread and coroutine implementations which allow you to write asynchronous code in a synchronous looking way – Eventlet for example.
绿色线程固然有效率得多，调度得更快，而且还有一个好处是，写异步的代码跟写同步的样子差不多。
There are of course efficient green thread and coroutine implementations which allow you to write asynchronous code in a synchronous looking way – Eventlet for example.
绿色线程固然有效率得多，调度得更快，而且还有一个好处是，写异步的代码跟写同步的样子差不多。
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