@asyncio.coroutine
时间: 2023-07-03 10:04:33 浏览: 90
`@asyncio.coroutine` is a decorator used in Python 3.4 and earlier versions to define a coroutine function. It was replaced by the `async def` syntax in Python 3.5 and above.
The `@asyncio.coroutine` decorator is used to mark a function as a coroutine, which allows it to be called with the `yield from` syntax. Coroutines are functions that can be paused and resumed at certain points, allowing other code to run in the meantime. They are used in asynchronous programming to enable non-blocking I/O operations and improve performance.
Here is an example of a coroutine function defined using `@asyncio.coroutine`:
```
import asyncio
@asyncio.coroutine
def my_coroutine():
print('Coroutine started')
yield from asyncio.sleep(1)
print('Coroutine resumed')
```
This coroutine function will print "Coroutine started", pause for 1 second using `yield from asyncio.sleep(1)`, and then print "Coroutine resumed".