{"id":9267,"date":"2024-04-26T00:43:17","date_gmt":"2024-04-25T16:43:17","guid":{"rendered":"\/?p=9267"},"modified":"2024-04-26T00:43:28","modified_gmt":"2024-04-25T16:43:28","slug":"%e5%bc%82%e6%ad%a5%e7%88%ac%e8%99%abasyncio%e3%80%81aiohttp","status":"publish","type":"post","link":"\/?p=9267","title":{"rendered":"\u5f02\u6b65\u722c\u866basyncio\u3001aiohttp"},"content":{"rendered":"

\u7b80\u5355\u4ecb\u7ecd\u533a\u522b<\/h2>\n

Python\u722c\u866b\u53ef\u4ee5\u4f7f\u7528\u540c\u6b65\u6a21\u5f0f\u548c\u5f02\u6b65\u6a21\u5f0f\u6765\u6267\u884c\u4efb\u52a1\uff0c\u8fd9\u4e24\u79cd\u6a21\u5f0f\u6709\u4e0d\u540c\u7684\u5de5\u4f5c\u65b9\u5f0f\u548c\u4f18\u7f3a\u70b9\u3002\u4e0b\u9762\u662f\u5b83\u4eec\u4e4b\u95f4\u7684\u4e3b\u8981\u533a\u522b\uff1a<\/p>\n

\u540c\u6b65\u6a21\u5f0f\uff1a<\/h3>\n

\u540c\u6b65\u6a21\u5f0f\u662f\u4f20\u7edf\u7684\u7f16\u7a0b\u65b9\u5f0f\uff0c\u4ee3\u7801\u6309\u7167\u987a\u5e8f\u6267\u884c\uff0c\u6bcf\u4e2a\u64cd\u4f5c\u90fd\u4f1a\u963b\u585e\u5f53\u524d\u7ebf\u7a0b\u76f4\u5230\u5b8c\u6210\u3002
\n\u5f53\u4e00\u4e2a\u8bf7\u6c42\u6216\u64cd\u4f5c\u9700\u8981\u65f6\u95f4\u8f83\u957f\u65f6\uff0c\u7a0b\u5e8f\u5c06\u88ab\u963b\u585e\uff0c\u7b49\u5f85\u7ed3\u679c\u8fd4\u56de\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u7a0b\u5e8f\u6027\u80fd\u8f83\u4f4e\uff0c\u5c24\u5176\u5728\u5927\u91cfIO\u5bc6\u96c6\u578b\u64cd\u4f5c\u65f6\u3002
\n\u4f7f\u7528\u6807\u51c6\u5e93\u4e2d\u7684\u6a21\u5757\uff08\u5982requests\uff09\u6765\u8fdb\u884c\u540c\u6b65\u722c\u53d6\u662f\u5f88\u5e38\u89c1\u7684\uff0c\u5b83\u4eec\u63d0\u4f9b\u4e86\u7b80\u5355\u6613\u7528\u7684\u63a5\u53e3\uff0c\u4f46\u5728\u5904\u7406\u5927\u89c4\u6a21\u722c\u53d6\u65f6\u53ef\u80fd\u6548\u7387\u4e0d\u9ad8\u3002<\/p>\n

\u5f02\u6b65\u6a21\u5f0f\uff1a<\/h3>\n

\u5f02\u6b65\u6a21\u5f0f\u5141\u8bb8\u540c\u65f6\u6267\u884c\u591a\u4e2a\u4efb\u52a1\u800c\u65e0\u9700\u7b49\u5f85\u4e00\u4e2a\u4efb\u52a1\u5b8c\u6210\u540e\u518d\u6267\u884c\u4e0b\u4e00\u4e2a\u3002\u8fd9\u610f\u5473\u7740\u53ef\u4ee5\u5145\u5206\u5229\u7528CPU\u548c\u7f51\u7edc\u8d44\u6e90\uff0c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002
\n\u4f7f\u7528\u5f02\u6b65\u5e93\uff08\u5982asyncio\u3001aiohttp\uff09\u6765\u8fdb\u884c\u5f02\u6b65\u722c\u53d6\uff0c\u53ef\u4ee5\u5927\u5e45\u63d0\u9ad8\u722c\u866b\u7684\u6548\u7387\uff0c\u7279\u522b\u9002\u7528\u4e8eIO\u5bc6\u96c6\u578b\u4efb\u52a1\uff0c\u5982\u722c\u53d6\u7f51\u9875\u6216API\u6570\u636e\u3002
\n\u5f02\u6b65\u6a21\u5f0f\u9700\u8981\u7406\u89e3\u548c\u7f16\u5199\u5f02\u6b65\u4ee3\u7801\uff0c\u5305\u62ec\u4f7f\u7528async\u548cawait\u5173\u952e\u5b57\uff0c\u4ee5\u53ca\u534f\u7a0b\uff08coroutine\uff09\u7684\u6982\u5ff5\u3002\u8fd9\u53ef\u80fd\u9700\u8981\u4e00\u4e9b\u5b66\u4e60\u6210\u672c\u3002<\/p>\n

\u603b\u7ed3\uff1a<\/h3>\n

\u540c\u6b65\u6a21\u5f0f\u9002\u7528\u4e8e\u7b80\u5355\u7684\u722c\u866b\u4efb\u52a1\uff0c\u4e0d\u9700\u8981\u9ad8\u5ea6\u4f18\u5316\u7684\u6027\u80fd\uff0c\u6216\u8005\u7f16\u5199\u5f02\u6b65\u4ee3\u7801\u7684\u5b66\u4e60\u6210\u672c\u8f83\u9ad8\u7684\u60c5\u51b5\u3002
\n\u5f02\u6b65\u6a21\u5f0f\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u6027\u80fd\u3001\u9ad8\u5e76\u53d1\u5904\u7406\u7684\u722c\u866b\u4efb\u52a1\uff0c\u80fd\u591f\u6709\u6548\u5730\u5229\u7528\u8ba1\u7b97\u8d44\u6e90\uff0c\u4f46\u9700\u8981\u66f4\u591a\u7684\u7f16\u7a0b\u6280\u5de7\u548c\u7406\u89e3\u5f02\u6b65\u7f16\u7a0b\u7684\u77e5\u8bc6\u3002
\n\u9009\u62e9\u54ea\u79cd\u6a21\u5f0f\u53d6\u51b3\u4e8e\u9879\u76ee\u7684\u9700\u6c42\u548c\u590d\u6742\u6027\uff0c\u4ee5\u53ca\u4f60\u5bf9\u5f02\u6b65\u7f16\u7a0b\u7684\u719f\u6089\u7a0b\u5ea6\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u6df7\u5408\u6a21\u5f0f\uff0c\u5373\u5728\u540c\u4e00\u4e2a\u722c\u866b\u9879\u76ee\u4e2d\uff0c\u7ed3\u5408\u4f7f\u7528\u540c\u6b65\u548c\u5f02\u6b65\u65b9\u6cd5\u6765\u5145\u5206\u53d1\u6325\u5404\u81ea\u7684\u4f18\u52bf\u3002<\/p>\n

\u4ee3\u7801\u4e3e\u4f8b\u8bf4\u660e<\/h3>\n

\u5f53\u6d89\u53ca\u5230\u722c\u866b\u65f6\uff0c\u8ba9\u6211\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u6765\u8bf4\u660e\u540c\u6b65\u6a21\u5f0f\u548c\u5f02\u6b65\u6a21\u5f0f\u7684\u533a\u522b\uff1a<\/p>\n

\u540c\u6b65\u6a21\u5f0f\u793a\u4f8b\uff1a<\/strong>
\n\u5047\u8bbe\u4f60\u8981\u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684\u722c\u866b\u7a0b\u5e8f\uff0c\u76ee\u6807\u662f\u4ece\u591a\u4e2a\u7f51\u7ad9\u4e0a\u4e0b\u8f7d\u9875\u9762\u5e76\u63d0\u53d6\u6570\u636e\u3002\u5728\u540c\u6b65\u6a21\u5f0f\u4e0b\uff0c\u4f60\u53ef\u80fd\u4f1a\u4f7f\u7528Python\u7684requests\u5e93\u6765\u5904\u7406\u8fd9\u4e2a\u4efb\u52a1\u3002\u4ee3\u7801\u53ef\u80fd\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

import requests\n\ndef fetch_data(url):\n    response = requests.get(url)\n    data = response.text\n    # \u5904\u7406\u6570\u636e\n    return data\n\n# \u722c\u53d6\u591a\u4e2a\u9875\u9762\nurls = ["http:\/\/example.com\/page1", "http:\/\/example.com\/page2", "http:\/\/example.com\/page3"]\nfor url in urls:\n    data = fetch_data(url)\n    # \u5904\u7406data\u7684\u903b\u8f91<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6bcf\u4e2afetch_data\u51fd\u6570\u8c03\u7528\u90fd\u4f1a\u963b\u585e\u7a0b\u5e8f\uff0c\u76f4\u5230\u8be5\u9875\u9762\u7684\u6570\u636e\u4e0b\u8f7d\u5b8c\u6210\uff0c\u7136\u540e\u624d\u4f1a\u7ee7\u7eed\u4e0b\u4e00\u4e2a\u9875\u9762\u7684\u4e0b\u8f7d\u548c\u5904\u7406\u3002\u8fd9\u662f\u5178\u578b\u7684\u540c\u6b65\u6a21\u5f0f\u3002<\/p>\n
\u5f02\u6b65\u6a21\u5f0f\u793a\u4f8b\uff1a<\/strong>
\n\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u770b\u770b\u5982\u4f55\u4f7f\u7528\u5f02\u6b65\u6a21\u5f0f\u6765\u6267\u884c\u76f8\u540c\u7684\u4efb\u52a1\uff0c\u4f7f\u7528Python\u7684asyncio\u548caiohttp\u5e93\u6765\u5b9e\u73b0\u5f02\u6b65\u722c\u866b\uff1a<\/p>\n
import asyncio\nimport aiohttp\n\nasync def fetch_data(url):\n    async with aiohttp.ClientSession() as session:\n        async with session.get(url) as response:\n            data = await response.text()\n            # \u5904\u7406\u6570\u636e\n            return data\n\n# \u722c\u53d6\u591a\u4e2a\u9875\u9762\nurls = ["http:\/\/example.com\/page1", "http:\/\/example.com\/page2", "http:\/\/example.com\/page3"]\nasync def main():\n    tasks = [fetch_data(url) for url in urls]\n    results = await asyncio.gather(*tasks)\n    # \u5904\u7406results\u7684\u903b\u8f91\n\nasyncio.run(main())<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86asyncio\u6765\u521b\u5efa\u5f02\u6b65\u4efb\u52a1\uff0cfetch_data\u51fd\u6570\u7684\u6267\u884c\u4e0d\u4f1a\u963b\u585e\u7a0b\u5e8f\uff0c\u800c\u662f\u5141\u8bb8\u540c\u65f6\u53d1\u8d77\u591a\u4e2a\u9875\u9762\u7684\u4e0b\u8f7d\u8bf7\u6c42\u3002\u8fd9\u6837\u53ef\u4ee5\u63d0\u9ad8\u722c\u866b\u7684\u6548\u7387\uff0c\u7279\u522b\u662f\u5728\u5927\u89c4\u6a21\u722c\u53d6\u65f6\u3002<\/p>\n
\u603b\u4e4b\uff0c\u5f02\u6b65\u6a21\u5f0f\u5141\u8bb8\u540c\u65f6\u5904\u7406\u591a\u4e2a\u4efb\u52a1\uff0c\u800c\u4e0d\u4f1a\u963b\u585e\u7a0b\u5e8f\u7684\u6267\u884c\uff0c\u8fd9\u53ef\u4ee5\u63d0\u9ad8\u722c\u866b\u7684\u6027\u80fd\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u5904\u7406\u5927\u91cfIO\u64cd\u4f5c\u7684\u60c5\u51b5\u4e0b\u3002\u800c\u540c\u6b65\u6a21\u5f0f\u5219\u662f\u6309\u987a\u5e8f\u6267\u884c\u4efb\u52a1\uff0c\u4e00\u4e2a\u5b8c\u6210\u540e\u624d\u80fd\u6267\u884c\u4e0b\u4e00\u4e2a\uff0c\u9002\u7528\u4e8e\u7b80\u5355\u7684\u722c\u866b\u4efb\u52a1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u7b80\u5355\u4ecb\u7ecd\u533a\u522b Python\u722c\u866b\u53ef\u4ee5\u4f7f\u7528\u540c\u6b65\u6a21\u5f0f\u548c\u5f02\u6b65\u6a21\u5f0f\u6765\u6267\u884c\u4efb\u52a1\uff0c\u8fd9\u4e24\u79cd\u6a21\u5f0f\u6709\u4e0d\u540c\u7684\u5de5\u4f5c\u65b9\u5f0f\u548c\u4f18\u7f3a\u70b9\u3002\u4e0b\u9762\u662f\u5b83\u4eec\u4e4b\u95f4\u7684\u4e3b\u8981\u533a\u522b\uff1a \u540c\u6b65   \u2026 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[268,30],"tags":[269,266],"_links":{"self":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts\/9267"}],"collection":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9267"}],"version-history":[{"count":1,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/9267\/revisions"}],"predecessor-version":[{"id":9268,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/9267\/revisions\/9268"}],"wp:attachment":[{"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9267"},{"taxonomy":"post_tag","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}