full-speed-python习题解答（九）--异步编程（Asynchronous programming）

ErgouChen

于 2019-01-01 11:17:46 发布

阅读量238

点赞数 1

CC 4.0 BY-SA版权

分类专栏： python 文章标签： full-speed-python

本文链接：https://blog.youkuaiyun.com/qq_33251995/article/details/85527498

python 专栏收录该内容

13 篇文章

订阅专栏

本文介绍使用Python的asyncio库进行异步编程的方法。通过两个示例演示如何创建和调度协程，实现变量相加并延迟执行，展示了并发任务的执行过程。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Exercises with asyncio
1. Implement an asynchronous coroutine function to add two variables and sleep for
the duration of the sum. Use the asyncio loop to call the function with two numbers.

import asyncio
async def add_two_V(a,b):
    print(f"add {a} and {b}")
    await asyncio.sleep(1)
    print("End add",a,b)
    return a+b

loop = asyncio.get_event_loop()
result = loop.run_until_complete(add_two_V(1,2))
print(result)
loop.close()

2. Change the previous program to schedule the execution of two calls to the sum
function.

async def add_two_V(a,b):
    print(f"add {a} and {b}")
    await asyncio.sleep(1)
    print("End add",a,b)
    return a+b

loop = asyncio.get_event_loop()
result = loop.run_until_complete(asyncio.gather(add_two_V(1,2),add_two_V(3,4)))
print(result)
loop.close()