39 lines
891 B
Python
39 lines
891 B
Python
# -*- encoding:utf-8 -*-
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'''
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@Author : dingjiawen
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@Date : 2023/12/6 16:20
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@Usage : asyncio库 可以使用async和await关键字
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@Desc :异步爬虫测试 定义协程 为某一个task绑定回调方法
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@参考：https://github.dev/Python3WebSpider/AsyncTest
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'''
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import asyncio
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import requests
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async def request():
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url = 'https://www.baidu.com'
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status = requests.get(url)
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return status
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def callback(task):
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print('Status:', task.result())
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coroutine = request()
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task = asyncio.ensure_future(coroutine)
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# 绑定回调，来保证顺序
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task.add_done_callback(callback)
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print('Task:', task)
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loop = asyncio.get_event_loop()
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loop.run_until_complete(task)
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print('Task:', task)
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# 直接通过task.result()也可以直接获取结果达到类似的效果
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loop = asyncio.get_event_loop()
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loop.run_until_complete(task)
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print('Task:', task)
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print('Task Result:', task.result())
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