{"id":958267,"date":"2024-12-27T03:21:51","date_gmt":"2024-12-26T19:21:51","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/958267.html"},"modified":"2024-12-27T03:21:54","modified_gmt":"2024-12-26T19:21:54","slug":"python-%e5%a4%9a%e7%ba%bf%e7%a8%8b%e5%a6%82%e4%bd%95%e5%85%b3%e9%97%ad","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/958267.html","title":{"rendered":"python \u591a\u7ebf\u7a0b\u5982\u4f55\u5173\u95ed"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25101359\/c2528b95-8a09-4b09-8d79-8e58f5bccad5.webp\" alt=\"python \u591a\u7ebf\u7a0b\u5982\u4f55\u5173\u95ed\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u5173\u95ed\u591a\u7ebf\u7a0b\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528\u7ebf\u7a0b\u7684\u5b88\u62a4\u6a21\u5f0f\u3001\u8bbe\u7f6e\u7ebf\u7a0b\u7684\u505c\u6b62\u6807\u5fd7\u3001\u4f7f\u7528\u961f\u5217\u6765\u63a7\u5236\u7ebf\u7a0b\u3001\u4ee5\u53ca\u901a\u8fc7\u7ed3\u5408\u4fe1\u53f7\u91cf\u5b9e\u73b0\u7ebf\u7a0b\u7684\u7ec8\u6b62\u3002<\/strong>\u672c\u6587\u5c06\u8be6\u7ec6\u63a2\u8ba8\u8fd9\u4e9b\u65b9\u6cd5\u53ca\u5176\u5e94\u7528\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u4f7f\u7528\u7ebf\u7a0b\u7684\u5b88\u62a4\u6a21\u5f0f<\/p>\n<\/p>\n<p><p>Python\u4e2d\u7684Thread\u7c7b\u5141\u8bb8\u8bbe\u7f6e\u7ebf\u7a0b\u4e3a\u5b88\u62a4\u7ebf\u7a0b\u3002\u5b88\u62a4\u7ebf\u7a0b\u4f1a\u5728\u4e3b\u7ebf\u7a0b\uff08\u5373\u7a0b\u5e8f\uff09\u9000\u51fa\u65f6\u81ea\u52a8\u5173\u95ed\uff0c\u800c\u4e0d\u9700\u8981\u663e\u5f0f\u5730\u505c\u6b62\u3002<\/p>\n<\/p>\n<ol>\n<li>\u5b88\u62a4\u7ebf\u7a0b\u7684\u5b9a\u4e49<\/li>\n<\/ol>\n<p><p>\u5b88\u62a4\u7ebf\u7a0b\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u7ebf\u7a0b\uff0c\u5b83\u7684\u751f\u547d\u5468\u671f\u4f9d\u8d56\u4e8e\u4e3b\u7ebf\u7a0b\u3002\u5f53\u4e3b\u7ebf\u7a0b\u7ed3\u675f\u65f6\uff0c\u6240\u6709\u6b63\u5728\u8fd0\u884c\u7684\u5b88\u62a4\u7ebf\u7a0b\u5c06\u88ab\u5f3a\u5236\u7ec8\u6b62\u3002\u56e0\u6b64\uff0c\u5982\u679c\u6211\u4eec\u5c06\u7ebf\u7a0b\u8bbe\u7f6e\u4e3a\u5b88\u62a4\u7ebf\u7a0b\uff0c\u5c31\u4e0d\u9700\u8981\u624b\u52a8\u5173\u95ed\u5b83\u4eec\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u5982\u4f55\u8bbe\u7f6e\u5b88\u62a4\u7ebf\u7a0b<\/li>\n<\/ol>\n<p><p>\u5728Python\u7684<code>threading<\/code>\u6a21\u5757\u4e2d\uff0c\u901a\u8fc7\u8bbe\u7f6e\u7ebf\u7a0b\u7684<code>daemon<\/code>\u5c5e\u6027\u4e3a<code>True<\/code>\uff0c\u53ef\u4ee5\u5c06\u7ebf\u7a0b\u8bbe\u7f6e\u4e3a\u5b88\u62a4\u7ebf\u7a0b\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import threading<\/p>\n<p>import time<\/p>\n<p>def worker():<\/p>\n<p>    while True:<\/p>\n<p>        print(&quot;Thread is running...&quot;)<\/p>\n<p>        time.sleep(1)<\/p>\n<p>t = threading.Thread(target=worker)<\/p>\n<p>t.daemon = True  # \u8bbe\u7f6e\u4e3a\u5b88\u62a4\u7ebf\u7a0b<\/p>\n<p>t.start()<\/p>\n<p>time.sleep(5)<\/p>\n<p>print(&quot;M<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>n thread is exiting...&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u7ebf\u7a0b<code>worker<\/code>\u88ab\u8bbe\u7f6e\u4e3a\u5b88\u62a4\u7ebf\u7a0b\uff0c\u56e0\u6b64\u5728\u4e3b\u7ebf\u7a0b\u7ed3\u675f\u540e\uff0c<code>worker<\/code>\u7ebf\u7a0b\u4f1a\u81ea\u52a8\u5173\u95ed\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528\u7ebf\u7a0b\u7684\u505c\u6b62\u6807\u5fd7<\/p>\n<\/p>\n<p><p>\u6709\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u66f4\u7cbe\u7ec6\u5730\u63a7\u5236\u7ebf\u7a0b\u7684\u751f\u547d\u5468\u671f\uff0c\u800c\u4e0d\u4ec5\u4ec5\u4f9d\u8d56\u4e8e\u5b88\u62a4\u6a21\u5f0f\u3002\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u7ebf\u7a0b\u7684\u505c\u6b62\u6807\u5fd7\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4ec0\u4e48\u662f\u7ebf\u7a0b\u505c\u6b62\u6807\u5fd7<\/li>\n<\/ol>\n<p><p>\u7ebf\u7a0b\u505c\u6b62\u6807\u5fd7\u662f\u4e00\u79cd\u7528\u4e8e\u901a\u77e5\u7ebf\u7a0b\u505c\u6b62\u8fd0\u884c\u7684\u673a\u5236\u3002\u901a\u8fc7\u5728\u7ebf\u7a0b\u7684\u5faa\u73af\u4e2d\u68c0\u67e5\u6807\u5fd7\u72b6\u6001\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5408\u9002\u7684\u65f6\u673a\u5b89\u5168\u5730\u7ec8\u6b62\u7ebf\u7a0b\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u5b9e\u73b0\u7ebf\u7a0b\u505c\u6b62\u6807\u5fd7<\/li>\n<\/ol>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528\u505c\u6b62\u6807\u5fd7\u5173\u95ed\u7ebf\u7a0b\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import threading<\/p>\n<p>import time<\/p>\n<p>stop_thread = False<\/p>\n<p>def worker():<\/p>\n<p>    global stop_thread<\/p>\n<p>    while not stop_thread:<\/p>\n<p>        print(&quot;Thread is running...&quot;)<\/p>\n<p>        time.sleep(1)<\/p>\n<p>t = threading.Thread(target=worker)<\/p>\n<p>t.start()<\/p>\n<p>time.sleep(5)<\/p>\n<p>stop_thread = True  # \u8bbe\u5b9a\u505c\u6b62\u6807\u5fd7<\/p>\n<p>t.join()  # \u7b49\u5f85\u7ebf\u7a0b\u7ec8\u6b62<\/p>\n<p>print(&quot;Main thread is exiting...&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u901a\u8fc7\u8bbe\u7f6e<code>stop_thread<\/code>\u6807\u5fd7\u4e3a<code>True<\/code>\uff0c\u901a\u77e5\u7ebf\u7a0b<code>worker<\/code>\u505c\u6b62\u8fd0\u884c\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u4f7f\u7528\u961f\u5217\u6765\u63a7\u5236\u7ebf\u7a0b<\/p>\n<\/p>\n<p><p>\u961f\u5217\uff08Queue\uff09\u662fPython\u4e2d\u7528\u4e8e\u7ebf\u7a0b\u95f4\u901a\u4fe1\u7684\u5e38\u7528\u5de5\u5177\uff0c\u4e5f\u53ef\u4ee5\u7528\u4e8e\u63a7\u5236\u7ebf\u7a0b\u7684\u751f\u547d\u5468\u671f\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528\u961f\u5217\u7684\u4f18\u52bf<\/li>\n<\/ol>\n<p><p>\u961f\u5217\u63d0\u4f9b\u4e86\u7ebf\u7a0b\u5b89\u5168\u7684\u64cd\u4f5c\uff0c\u56e0\u6b64\u53ef\u4ee5\u5b89\u5168\u5730\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\u4f7f\u7528\u3002\u901a\u8fc7\u5728\u961f\u5217\u4e2d\u653e\u7f6e\u7279\u6b8a\u7684\u7ec8\u6b62\u4fe1\u53f7\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u77e5\u7ebf\u7a0b\u5b89\u5168\u5730\u505c\u6b62\u8fd0\u884c\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528\u961f\u5217\u5173\u95ed\u7ebf\u7a0b<\/li>\n<\/ol>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u901a\u8fc7\u961f\u5217\u5173\u95ed\u7ebf\u7a0b\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import threading<\/p>\n<p>import queue<\/p>\n<p>import time<\/p>\n<p>def worker(q):<\/p>\n<p>    while True:<\/p>\n<p>        item = q.get()<\/p>\n<p>        if item is None:<\/p>\n<p>            break<\/p>\n<p>        print(f&quot;Processing {item}&quot;)<\/p>\n<p>        time.sleep(1)<\/p>\n<p>    print(&quot;Worker thread is exiting...&quot;)<\/p>\n<p>q = queue.Queue()<\/p>\n<p>t = threading.Thread(target=worker, args=(q,))<\/p>\n<p>t.start()<\/p>\n<p>for i in range(5):<\/p>\n<p>    q.put(i)<\/p>\n<p>q.put(None)  # \u653e\u7f6e\u7279\u6b8a\u4fe1\u53f7\u901a\u77e5\u7ebf\u7a0b\u9000\u51fa<\/p>\n<p>t.join()  # \u7b49\u5f85\u7ebf\u7a0b\u7ec8\u6b62<\/p>\n<p>print(&quot;Main thread is exiting...&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u901a\u8fc7\u5728\u961f\u5217\u4e2d\u653e\u7f6e<code>None<\/code>\u4f5c\u4e3a\u7279\u6b8a\u4fe1\u53f7\uff0c\u901a\u77e5\u7ebf\u7a0b<code>worker<\/code>\u505c\u6b62\u8fd0\u884c\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u901a\u8fc7\u7ed3\u5408\u4fe1\u53f7\u91cf\u5b9e\u73b0\u7ebf\u7a0b\u7684\u7ec8\u6b62<\/p>\n<\/p>\n<p><p>\u4fe1\u53f7\u91cf\uff08Semaphore\uff09\u662f\u63a7\u5236\u7ebf\u7a0b\u5e76\u53d1\u7684\u5de5\u5177\uff0c\u4e5f\u53ef\u4ee5\u7528\u4e8e\u7ebf\u7a0b\u7684\u7ec8\u6b62\u63a7\u5236\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4fe1\u53f7\u91cf\u7684\u57fa\u672c\u6982\u5ff5<\/li>\n<\/ol>\n<p><p>\u4fe1\u53f7\u91cf\u662f\u4e00\u79cd\u7528\u4e8e\u63a7\u5236\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u7684\u8ba1\u6570\u5668\u3002\u901a\u8fc7\u4fe1\u53f7\u91cf\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u7ebf\u7a0b\u7684\u540c\u6b65\u4e0e\u63a7\u5236\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528\u4fe1\u53f7\u91cf\u5173\u95ed\u7ebf\u7a0b<\/li>\n<\/ol>\n<p><p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528\u4fe1\u53f7\u91cf\u5b9e\u73b0\u7ebf\u7a0b\u7ec8\u6b62\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import threading<\/p>\n<p>import time<\/p>\n<p>stop_semaphore = threading.Semaphore(0)<\/p>\n<p>def worker():<\/p>\n<p>    while stop_semaphore.acquire(blocking=False) is False:<\/p>\n<p>        print(&quot;Thread is running...&quot;)<\/p>\n<p>        time.sleep(1)<\/p>\n<p>    print(&quot;Worker thread is exiting...&quot;)<\/p>\n<p>t = threading.Thread(target=worker)<\/p>\n<p>t.start()<\/p>\n<p>time.sleep(5)<\/p>\n<p>stop_semaphore.release()  # \u91ca\u653e\u4fe1\u53f7\u91cf\uff0c\u901a\u77e5\u7ebf\u7a0b\u505c\u6b62<\/p>\n<p>t.join()  # \u7b49\u5f85\u7ebf\u7a0b\u7ec8\u6b62<\/p>\n<p>print(&quot;Main thread is exiting...&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u901a\u8fc7\u91ca\u653e<code>stop_semaphore<\/code>\u4fe1\u53f7\u91cf\uff0c\u901a\u77e5\u7ebf\u7a0b<code>worker<\/code>\u505c\u6b62\u8fd0\u884c\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u603b\u7ed3\u4e0e\u6700\u4f73\u5b9e\u8df5<\/p>\n<\/p>\n<p><p>\u5728Python\u4e2d\u5173\u95ed\u591a\u7ebf\u7a0b\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u9002\u7528\u7684\u573a\u666f\u548c\u4f18\u7f3a\u70b9\u3002\u5728\u9009\u62e9\u5177\u4f53\u7684\u65b9\u6cd5\u65f6\uff0c\u5e94\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\u548c\u590d\u6742\u6027\u8fdb\u884c\u6743\u8861\u3002<\/p>\n<\/p>\n<ol>\n<li>\u5b88\u62a4\u7ebf\u7a0b\uff1a\u9002\u7528\u4e8e\u7b80\u5355\u7684\u573a\u666f\uff0c\u5728\u4e3b\u7ebf\u7a0b\u9000\u51fa\u65f6\u81ea\u52a8\u5173\u95ed\u5b50\u7ebf\u7a0b\u3002<\/li>\n<li>\u505c\u6b62\u6807\u5fd7\uff1a\u9002\u7528\u4e8e\u9700\u8981\u7cbe\u7ec6\u63a7\u5236\u7ebf\u7a0b\u751f\u547d\u5468\u671f\u7684\u573a\u666f\uff0c\u7b80\u5355\u6613\u7528\u3002<\/li>\n<li>\u961f\u5217\u63a7\u5236\uff1a\u9002\u7528\u4e8e\u9700\u8981\u5728\u7ebf\u7a0b\u95f4\u4f20\u9012\u6570\u636e\u7684\u573a\u666f\uff0c\u63d0\u4f9b\u7ebf\u7a0b\u5b89\u5168\u7684\u6d88\u606f\u4f20\u9012\u673a\u5236\u3002<\/li>\n<li>\u4fe1\u53f7\u91cf\uff1a\u9002\u7528\u4e8e\u9700\u8981\u540c\u6b65\u591a\u4e2a\u7ebf\u7a0b\u7684\u573a\u666f\uff0c\u63d0\u4f9b\u7075\u6d3b\u7684\u7ebf\u7a0b\u63a7\u5236\u673a\u5236\u3002<\/li>\n<\/ol>\n<p><p>\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u5efa\u8bae\u6839\u636e\u5e94\u7528\u7a0b\u5e8f\u7684\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u5e76\u9075\u5faa\u6700\u4f73\u5b9e\u8df5\uff0c\u4ee5\u786e\u4fdd\u7ebf\u7a0b\u7684\u5b89\u5168\u6027\u548c\u6548\u7387\u6027\u3002\u901a\u8fc7\u5408\u7406\u7684\u7ebf\u7a0b\u7ba1\u7406\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u8fd8\u53ef\u4ee5\u589e\u5f3a\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u4f18\u96c5\u5730\u5173\u95ed\u591a\u7ebf\u7a0b\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u4f18\u96c5\u5730\u5173\u95ed\u591a\u7ebf\u7a0b\u901a\u5e38\u6d89\u53ca\u8bbe\u7f6e\u4e00\u4e2a\u6807\u5fd7\u4f4d\uff0c\u7ebf\u7a0b\u5728\u6267\u884c\u4efb\u52a1\u65f6\u4f1a\u5b9a\u671f\u68c0\u67e5\u8fd9\u4e2a\u6807\u5fd7\u3002\u5982\u679c\u6807\u5fd7\u88ab\u8bbe\u7f6e\u4e3a\u5173\u95ed\uff0c\u7ebf\u7a0b\u5c06\u505c\u6b62\u6267\u884c\u5e76\u5b89\u5168\u9000\u51fa\u3002\u53ef\u4ee5\u4f7f\u7528<code>threading.Event<\/code>\u5bf9\u8c61\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u597d\u7684\u7ebf\u7a0b\u95f4\u901a\u4fe1\u65b9\u5f0f\uff0c\u8ba9\u4f60\u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u63a7\u5236\u7ebf\u7a0b\u7684\u7ed3\u675f\u3002<\/p>\n<p><strong>\u5728\u591a\u7ebf\u7a0b\u4e2d\u9047\u5230\u95ee\u9898\u65f6\uff0c\u5982\u4f55\u8c03\u8bd5\uff1f<\/strong><br 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