{"id":940526,"date":"2024-12-26T21:01:51","date_gmt":"2024-12-26T13:01:51","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/940526.html"},"modified":"2024-12-26T21:01:53","modified_gmt":"2024-12-26T13:01:53","slug":"python%e5%a6%82%e4%bd%95%e6%97%b6%e5%bb%b6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/940526.html","title":{"rendered":"python\u5982\u4f55\u65f6\u5ef6"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25075110\/4ba6490f-1023-46a7-8fb9-1b350385c871.webp\" alt=\"python\u5982\u4f55\u65f6\u5ef6\" \/><\/p>\n<p><p> <strong>Python\u4e2d\u5b9e\u73b0\u65f6\u5ef6\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u4f8b\u5982\uff1a\u4f7f\u7528time\u6a21\u5757\u3001\u5229\u7528\u7ebf\u7a0b\u3001\u5f02\u6b65\u7f16\u7a0b\u7b49\u3002\u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528time\u6a21\u5757\u4e2d\u7684sleep\u51fd\u6570\u3002<\/strong>time.sleep(seconds)\u51fd\u6570\u53ef\u4ee5\u8ba9\u7a0b\u5e8f\u6682\u505c\u6307\u5b9a\u7684\u79d2\u6570\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u65f6\u5ef6\u53ef\u4ee5\u7528\u4e8e\u63a7\u5236\u7a0b\u5e8f\u7684\u6267\u884c\u8282\u594f\u3001\u7b49\u5f85\u67d0\u4e9b\u64cd\u4f5c\u5b8c\u6210\u7b49\u573a\u666f\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u63a2\u8ba8Python\u4e2d\u5b9e\u73b0\u65f6\u5ef6\u7684\u4e0d\u540c\u65b9\u6cd5\u53ca\u5176\u5e94\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001TIME\u6a21\u5757\u5b9e\u73b0\u65f6\u5ef6<\/p>\n<\/p>\n<p><p>time\u6a21\u5757\u662fPython\u6807\u51c6\u5e93\u7684\u4e00\u90e8\u5206\uff0c\u63d0\u4f9b\u4e86\u8bb8\u591a\u4e0e\u65f6\u95f4\u76f8\u5173\u7684\u529f\u80fd\u3002\u4f7f\u7528time.sleep\u51fd\u6570\u662f\u5b9e\u73b0\u65f6\u5ef6\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528time.sleep\u51fd\u6570<\/li>\n<\/ol>\n<p><p>time.sleep(seconds)\u51fd\u6570\u662fPython\u4e2d\u6700\u7b80\u5355\u7684\u65f6\u5ef6\u65b9\u6cd5\u3002\u5b83\u4f1a\u6682\u505c\u7a0b\u5e8f\u7684\u6267\u884c\uff0c\u76f4\u5230\u6307\u5b9a\u7684\u79d2\u6570\u8fc7\u53bb\u3002seconds\u53c2\u6570\u53ef\u4ee5\u662f\u6d6e\u70b9\u6570\uff0c\u7528\u4e8e\u8868\u793a\u79d2\u6570\uff0c\u8fd9\u610f\u5473\u7740\u53ef\u4ee5\u5b9e\u73b0\u4e9a\u79d2\u7ea7\u522b\u7684\u65f6\u5ef6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import time<\/p>\n<p>print(&quot;Start&quot;)<\/p>\n<p>time.sleep(2)  # \u6682\u505c2\u79d2<\/p>\n<p>print(&quot;End&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u5e94\u7528\u573a\u666f<\/li>\n<\/ol>\n<p><p>time.sleep\u51fd\u6570\u5e38\u7528\u4e8e\u5728\u7a0b\u5e8f\u4e2d\u5f15\u5165\u56fa\u5b9a\u7684\u65f6\u5ef6\uff0c\u4f8b\u5982\u5728\u5faa\u73af\u4e2d\u63a7\u5236\u6267\u884c\u8282\u594f\u3001\u7b49\u5f85\u5916\u90e8\u8d44\u6e90\u52a0\u8f7d\u7b49\u3002\u5b83\u9002\u7528\u4e8e\u4e0d\u9700\u8981\u7cbe\u786e\u63a7\u5236\u65f6\u5ef6\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001THREADING\u6a21\u5757\u4e2d\u7684\u65f6\u5ef6<\/p>\n<\/p>\n<p><p>Python\u7684threading\u6a21\u5757\u652f\u6301\u591a\u7ebf\u7a0b\u7f16\u7a0b\uff0c\u53ef\u4ee5\u7528\u4e8e\u5728\u4e0d\u540c\u7684\u7ebf\u7a0b\u4e2d\u5b9e\u73b0\u65f6\u5ef6\u3002<\/p>\n<\/p>\n<ol>\n<li>\u521b\u5efa\u5e26\u65f6\u5ef6\u7684\u7ebf\u7a0b<\/li>\n<\/ol>\n<p><p>\u901a\u8fc7\u521b\u5efa\u4e00\u4e2a\u65b0\u7ebf\u7a0b\uff0c\u53ef\u4ee5\u5728\u8be5\u7ebf\u7a0b\u4e2d\u5f15\u5165\u65f6\u5ef6\uff0c\u800c\u4e0d\u5f71\u54cd\u4e3b\u7ebf\u7a0b\u7684\u6267\u884c\u3002\u8fd9\u6837\u53ef\u4ee5\u5b9e\u73b0\u66f4\u4e3a\u590d\u6742\u7684\u5e76\u53d1\u4efb\u52a1\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import threading<\/p>\n<p>import time<\/p>\n<p>def delayed_task():<\/p>\n<p>    print(&quot;Task starts&quot;)<\/p>\n<p>    time.sleep(3)  # \u4efb\u52a1\u6682\u505c3\u79d2<\/p>\n<p>    print(&quot;Task ends&quot;)<\/p>\n<p>thread = threading.Thread(target=delayed_task)<\/p>\n<p>thread.start()<\/p>\n<p>print(&quot;M<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>n thread continues&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u5e94\u7528\u573a\u666f<\/li>\n<\/ol>\n<p><p>\u591a\u7ebf\u7a0b\u4e2d\u7684\u65f6\u5ef6\u9002\u7528\u4e8e\u5e76\u53d1\u4efb\u52a1\u7684\u8c03\u5ea6\u548c\u63a7\u5236\uff0c\u5982\u7f51\u7edc\u8bf7\u6c42\u3001\u6587\u4ef6\u8bfb\u5199\u7b49\u3002\u5728\u8fd9\u4e9b\u573a\u666f\u4e2d\uff0c\u53ef\u4ee5\u5c06\u8017\u65f6\u7684\u64cd\u4f5c\u653e\u5230\u5355\u72ec\u7684\u7ebf\u7a0b\u4e2d\u6267\u884c\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001ASYNCIO\u6a21\u5757\u5b9e\u73b0\u5f02\u6b65\u65f6\u5ef6<\/p>\n<\/p>\n<p><p>asyncio\u6a21\u5757\u662fPython\u7528\u4e8e\u5f02\u6b65\u7f16\u7a0b\u7684\u6807\u51c6\u5e93\uff0c\u5141\u8bb8\u5f00\u53d1\u8005\u7f16\u5199\u5f02\u6b65I\/O\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528asyncio.sleep\u5b9e\u73b0\u65f6\u5ef6<\/li>\n<\/ol>\n<p><p>asyncio.sleep\u51fd\u6570\u7528\u4e8e\u5728\u5f02\u6b65\u51fd\u6570\u4e2d\u5f15\u5165\u65f6\u5ef6\u3002\u4e0etime.sleep\u4e0d\u540c\uff0casyncio.sleep\u4e0d\u4f1a\u963b\u585e\u4e8b\u4ef6\u5faa\u73af\uff0c\u56e0\u6b64\u9002\u7528\u4e8e\u5f02\u6b65\u7f16\u7a0b\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import asyncio<\/p>\n<p>async def main():<\/p>\n<p>    print(&quot;Start&quot;)<\/p>\n<p>    await asyncio.sleep(1)  # \u5f02\u6b65\u6682\u505c1\u79d2<\/p>\n<p>    print(&quot;End&quot;)<\/p>\n<p>asyncio.run(main())<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u5e94\u7528\u573a\u666f<\/li>\n<\/ol>\n<p><p>asyncio.sleep\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u5e76\u53d1\u7684\u5f02\u6b65\u5e94\u7528\u573a\u666f\uff0c\u5982\u7f51\u7edc\u722c\u866b\u3001\u5f02\u6b65\u7f51\u7edc\u901a\u4fe1\u7b49\u3002\u5728\u8fd9\u4e9b\u573a\u666f\u4e2d\uff0c\u4f7f\u7528asyncio.sleep\u53ef\u4ee5\u907f\u514d\u963b\u585e\u5176\u4ed6\u534f\u7a0b\u7684\u6267\u884c\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001SCHED\u6a21\u5757\u4e2d\u7684\u65f6\u5ef6<\/p>\n<\/p>\n<p><p>sched\u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u79cd\u57fa\u4e8e\u65f6\u95f4\u7684\u4efb\u52a1\u8c03\u5ea6\u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u9700\u8981\u7cbe\u786e\u63a7\u5236\u4efb\u52a1\u6267\u884c\u65f6\u95f4\u7684\u573a\u666f\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528sched.scheduler\u5b9e\u73b0\u65f6\u5ef6<\/li>\n<\/ol>\n<p><p>sched.scheduler\u7c7b\u5141\u8bb8\u5f00\u53d1\u8005\u521b\u5efa\u4e00\u4e2a\u8c03\u5ea6\u5668\uff0c\u7ba1\u7406\u591a\u4e2a\u4efb\u52a1\u7684\u6267\u884c\u65f6\u95f4\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import sched<\/p>\n<p>import time<\/p>\n<p>s = sched.scheduler(time.time, time.sleep)<\/p>\n<p>def print_event(name):<\/p>\n<p>    print(&quot;Event:&quot;, name, &quot;Time:&quot;, time.time())<\/p>\n<p>s.enter(2, 1, print_event, argument=(&#39;First&#39;,))<\/p>\n<p>s.enter(4, 1, print_event, argument=(&#39;Second&#39;,))<\/p>\n<p>print(&quot;Start time:&quot;, time.time())<\/p>\n<p>s.run()<\/p>\n<p>print(&quot;End time:&quot;, time.time())<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u5e94\u7528\u573a\u666f<\/li>\n<\/ol>\n<p><p>sched\u6a21\u5757\u9002\u7528\u4e8e\u9700\u8981\u7cbe\u786e\u63a7\u5236\u4efb\u52a1\u6267\u884c\u65f6\u95f4\u7684\u5e94\u7528\uff0c\u5982\u5b9a\u65f6\u4efb\u52a1\u3001\u4e8b\u4ef6\u89e6\u53d1\u7b49\u3002\u5b83\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u4efb\u52a1\u8c03\u5ea6\u673a\u5236\uff0c\u53ef\u4ee5\u6839\u636e\u4f18\u5148\u7ea7\u548c\u65f6\u95f4\u5b89\u6392\u4efb\u52a1\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u5176\u4ed6\u5b9e\u73b0\u65f6\u5ef6\u7684\u65b9\u6cd5<\/p>\n<\/p>\n<p><p>\u9664\u4e86\u4e0a\u8ff0\u51e0\u79cd\u65b9\u6cd5\uff0c\u8fd8\u6709\u5176\u4ed6\u4e00\u4e9b\u5b9e\u73b0\u65f6\u5ef6\u7684\u65b9\u5f0f\uff0c\u5982\u5229\u7528\u4fe1\u53f7\u3001\u5b9a\u65f6\u5668\u7b49\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528\u4fe1\u53f7\u5b9e\u73b0\u65f6\u5ef6<\/li>\n<\/ol>\n<p><p>Python\u7684signal\u6a21\u5757\u5141\u8bb8\u8bbe\u7f6e\u5b9a\u65f6\u5668\u4fe1\u53f7\uff0c\u5b9e\u73b0\u65f6\u5ef6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import signal<\/p>\n<p>import time<\/p>\n<p>def handler(signum, frame):<\/p>\n<p>    print(&quot;Signal received:&quot;, signum)<\/p>\n<p>signal.signal(signal.SIGALRM, handler)<\/p>\n<p>signal.alarm(2)  # 2\u79d2\u540e\u53d1\u9001\u4fe1\u53f7<\/p>\n<p>print(&quot;Waiting for signal...&quot;)<\/p>\n<p>time.sleep(3)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528\u5b9a\u65f6\u5668\u5b9e\u73b0\u65f6\u5ef6<\/li>\n<\/ol>\n<p><p>\u901a\u8fc7threading.Timer\u7c7b\uff0c\u53ef\u4ee5\u5728\u6307\u5b9a\u65f6\u95f4\u540e\u6267\u884c\u67d0\u4e2a\u51fd\u6570\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from threading import Timer<\/p>\n<p>def hello():<\/p>\n<p>    print(&quot;Hello, World!&quot;)<\/p>\n<p>t = Timer(2.0, hello)  # 2\u79d2\u540e\u6267\u884chello\u51fd\u6570<\/p>\n<p>t.start()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u603b\u7ed3<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u5b9e\u73b0\u65f6\u5ef6\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002\u5bf9\u4e8e\u7b80\u5355\u7684\u65f6\u5ef6\uff0ctime.sleep\u51fd\u6570\u662f\u6700\u5e38\u7528\u7684\u9009\u62e9\uff1b\u5bf9\u4e8e\u591a\u7ebf\u7a0b\u4efb\u52a1\uff0c\u53ef\u4ee5\u4f7f\u7528threading\u6a21\u5757\uff1b\u5bf9\u4e8e\u5f02\u6b65\u7f16\u7a0b\uff0casyncio\u6a21\u5757\u662f\u7406\u60f3\u7684\u9009\u62e9\uff1b\u800c\u5bf9\u4e8e\u9700\u8981\u7cbe\u786e\u63a7\u5236\u7684\u4efb\u52a1\uff0csched\u6a21\u5757\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u8c03\u5ea6\u673a\u5236\u3002\u7406\u89e3\u548c\u9009\u62e9\u5408\u9002\u7684\u65f6\u5ef6\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u548c\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u5b9e\u73b0\u65f6\u95f4\u5ef6\u8fdf\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>time<\/code>\u6a21\u5757\u6765\u5b9e\u73b0\u65f6\u95f4\u5ef6\u8fdf\u3002\u901a\u8fc7\u8c03\u7528<code>time.sleep(seconds)<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u8ba9\u7a0b\u5e8f\u6682\u505c\u6307\u5b9a\u7684\u79d2\u6570\u3002\u4f8b\u5982\uff0c<code>time.sleep(2)<\/code>\u4f1a\u8ba9\u7a0b\u5e8f\u6682\u505c2\u79d2\u3002\u8fd9\u4e2a\u65b9\u6cd5\u975e\u5e38\u9002\u7528\u4e8e\u9700\u8981\u7b49\u5f85\u67d0\u4e2a\u64cd\u4f5c\u5b8c\u6210\u6216\u8005\u5728\u5faa\u73af\u4e2d\u63a7\u5236\u6267\u884c\u9891\u7387\u7684\u573a\u666f\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\uff0ctime.sleep()\u51fd\u6570\u7684\u53c2\u6570\u53ef\u4ee5\u662f\u6d6e\u70b9\u6570\u5417\uff1f<\/strong><br \/>\u662f\u7684\uff0c<code>time.sleep()<\/code>\u51fd\u6570\u7684\u53c2\u6570\u53ef\u4ee5\u662f\u6d6e\u70b9\u6570\uff0c\u8fd9\u610f\u5473\u7740\u4f60\u53ef\u4ee5\u8bbe\u7f6e\u65f6\u95f4\u5ef6\u8fdf\u4e3a\u5c0f\u6570\uff0c\u4f8b\u5982<code>time.sleep(0.5)<\/code>\u5c06\u4f7f\u7a0b\u5e8f\u6682\u505c0.5\u79d2\u3002\u8fd9\u5728\u9700\u8981\u66f4\u7cbe\u786e\u7684\u65f6\u95f4\u63a7\u5236\u65f6\u975e\u5e38\u6709\u7528\uff0c\u5c24\u5176\u662f\u5728\u52a8\u753b\u6216\u5b9e\u65f6\u6570\u636e\u5904\u7406\u7684\u5e94\u7528\u4e2d\u3002<\/p>\n<p><strong>\u4f7f\u7528Python\u7684\u5f02\u6b65\u7f16\u7a0b\u5b9e\u73b0\u65f6\u95f4\u5ef6\u8fdf\u6709\u4ec0\u4e48\u4f18\u52bf\uff1f<\/strong><br \/>\u4f7f\u7528\u5f02\u6b65\u7f16\u7a0b\uff0c\u7279\u522b\u662f<code>asyncio<\/code>\u5e93\uff0c\u53ef\u4ee5\u5728\u6267\u884c\u5176\u4ed6\u4efb\u52a1\u7684\u540c\u65f6\u5b9e\u73b0\u65f6\u95f4\u5ef6\u8fdf\u3002\u901a\u8fc7\u4f7f\u7528<code>await asyncio.sleep(seconds)<\/code>\uff0c\u53ef\u4ee5\u5728\u4e0d\u963b\u585e\u6574\u4e2a\u7a0b\u5e8f\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0\u5ef6\u8fdf\u3002\u8fd9\u79cd\u65b9\u6cd5\u7279\u522b\u9002\u5408\u5904\u7406I\/O\u5bc6\u96c6\u578b\u4efb\u52a1\uff0c\u6bd4\u5982\u7f51\u7edc\u8bf7\u6c42\u6216\u6587\u4ef6\u64cd\u4f5c\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6548\u7387\u548c\u54cd\u5e94\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u4e2d\u5b9e\u73b0\u65f6\u5ef6\u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u4f8b\u5982\uff1a\u4f7f\u7528time\u6a21\u5757\u3001\u5229\u7528\u7ebf\u7a0b\u3001\u5f02\u6b65\u7f16\u7a0b\u7b49\u3002\u5176\u4e2d\uff0c\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528ti [&hellip;]","protected":false},"author":3,"featured_media":940531,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/940526"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=940526"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/940526\/revisions"}],"predecessor-version":[{"id":940535,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/940526\/revisions\/940535"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/940531"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=940526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=940526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=940526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}