{"id":516,"date":"2024-12-25T00:58:16","date_gmt":"2024-12-24T16:58:16","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=516"},"modified":"2024-12-25T00:58:16","modified_gmt":"2024-12-24T16:58:16","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-windows-%e4%b8%8a%e5%ae%9e%e7%8e%b0%e4%ba%9a%e6%af%ab%e7%a7%92%e7%ba%a7%e7%9a%84%e7%9d%a1%e7%9c%a0%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2024\/12\/25\/%e5%a6%82%e4%bd%95%e5%9c%a8-windows-%e4%b8%8a%e5%ae%9e%e7%8e%b0%e4%ba%9a%e6%af%ab%e7%a7%92%e7%ba%a7%e7%9a%84%e7%9d%a1%e7%9c%a0%ef%bc%9f\/","title":{"rendered":"\u5982\u4f55\u5728 Windows \u4e0a\u5b9e\u73b0\u4e9a\u6beb\u79d2\u7ea7\u7684\u7761\u7720\uff1f"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u5728 Windows \u7cfb\u7edf\u4e0a\uff0c\u6807\u51c6\u7684\u7761\u7720\u51fd\u6570\uff08\u5982 <code>Sleep<\/code>\uff09\u901a\u5e38\u53ea\u80fd\u63d0\u4f9b\u6beb\u79d2\u7ea7\u522b\u7684\u7cbe\u5ea6\uff0c\u4e0d\u80fd\u6ee1\u8db3\u4e9a\u6beb\u79d2\u7ea7\u7684\u7cbe\u5ea6\u8981\u6c42\u3002\u8981\u5b9e\u73b0\u4e9a\u6beb\u79d2\u7ea7\u522b\u7684\u7761\u7720\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u4f7f\u7528 <code>QueryPerformanceCounter<\/code> \u548c <code>QueryPerformanceFrequency<\/code><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>QueryPerformanceCounter<\/code> \u548c <code>QueryPerformanceFrequency<\/code> \u662f Windows API \u63d0\u4f9b\u7684\u9ad8\u7cbe\u5ea6\u8ba1\u65f6\u5668\uff0c\u5b83\u4eec\u80fd\u591f\u4ee5\u975e\u5e38\u9ad8\u7684\u7cbe\u5ea6\uff08\u901a\u5e38\u8fbe\u5230\u7eb3\u79d2\u7ea7\u522b\uff09\u6765\u83b7\u53d6\u7cfb\u7edf\u65f6\u95f4\uff0c\u5229\u7528\u5b83\u4eec\u53ef\u4ee5\u6a21\u62df\u4e9a\u6beb\u79d2\u7ea7\u522b\u7684\u7761\u7720\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;windows.h&gt;\n#include &lt;stdio.h&gt;\n\nvoid sleep_accurate(long long sleep_time_ns) {\n    LARGE_INTEGER frequency;\n    LARGE_INTEGER start_time, current_time;\n\n    \/\/ \u83b7\u53d6\u8ba1\u65f6\u5668\u7684\u9891\u7387\n    QueryPerformanceFrequency(&amp;frequency);\n\n    \/\/ \u83b7\u53d6\u5f53\u524d\u8ba1\u65f6\u5668\u7684\u65f6\u95f4\n    QueryPerformanceCounter(&amp;start_time);\n\n    long long target_time = start_time.QuadPart + (sleep_time_ns * frequency.QuadPart) \/ 1000000000;\n\n    \/\/ \u7b49\u5f85\u76f4\u5230\u8fbe\u5230\u76ee\u6807\u65f6\u95f4\n    do {\n        QueryPerformanceCounter(&amp;current_time);\n    } while (current_time.QuadPart &lt; target_time);\n}\n\nint main() {\n    printf(\"Sleeping for 500 nanoseconds...\\n\");\n    sleep_accurate(500);  \/\/ \u7761\u7720 500 \u7eb3\u79d2\n    printf(\"Woke up after 500 nanoseconds!\\n\");\n    return 0;\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>QueryPerformanceFrequency<\/code> \u83b7\u53d6\u8ba1\u65f6\u5668\u7684\u9891\u7387\uff0c\u901a\u5e38\u662f\u4ee5\u6bcf\u79d2\u591a\u5c11\u6b21\u8ba1\u65f6\u5668\u6765\u8868\u793a\u3002<\/li>\n\n\n\n<li><code>QueryPerformanceCounter<\/code> \u83b7\u53d6\u5f53\u524d\u8ba1\u65f6\u5668\u7684\u503c\uff0c\u901a\u8fc7\u8ba1\u7b97\u76ee\u6807\u65f6\u95f4\uff0c\u5229\u7528\u5faa\u73af\u6765\u5b9e\u73b0\u7cbe\u786e\u7684\u7761\u7720\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u79cd\u65b9\u6cd5\u63d0\u4f9b\u4e86\u6bd4 <code>Sleep<\/code> \u66f4\u7cbe\u786e\u7684\u63a7\u5236\uff0c\u4f46\u7531\u4e8e <code>QueryPerformanceCounter<\/code> \u662f\u57fa\u4e8e\u786c\u4ef6\u7684\u8ba1\u65f6\u5668\uff0c\u56e0\u6b64\u5b83\u7684\u7cbe\u5ea6\u548c\u7cfb\u7edf\u7684\u786c\u4ef6\u6709\u5173\uff0c\u901a\u5e38\u80fd\u591f\u8fbe\u5230\u4e9a\u6beb\u79d2\u7ea7\u522b\u7684\u7cbe\u5ea6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. \u4f7f\u7528 <code>timeBeginPeriod<\/code> \u548c <code>timeEndPeriod<\/code>\uff08\u8bbe\u7f6e\u5168\u5c40\u5b9a\u65f6\u5668\u7cbe\u5ea6\uff09<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Windows \u7cfb\u7edf\u7684 <code>timeBeginPeriod<\/code> \u548c <code>timeEndPeriod<\/code> \u51fd\u6570\u5141\u8bb8\u4f60\u8bbe\u7f6e\u7cfb\u7edf\u5b9a\u65f6\u5668\u7684\u7cbe\u5ea6\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cWindows \u7684\u5b9a\u65f6\u5668\u7cbe\u5ea6\u4e3a 15.6 \u6beb\u79d2\uff0c\u4f46\u901a\u8fc7\u8c03\u7528 <code>timeBeginPeriod<\/code>\uff0c\u4f60\u53ef\u4ee5\u5c06\u7cbe\u5ea6\u8bbe\u7f6e\u4e3a\u66f4\u9ad8\u7684\u503c\uff08\u5982 1 \u6beb\u79d2\uff09\uff0c\u4ece\u800c\u83b7\u5f97\u66f4\u7cbe\u786e\u7684\u7761\u7720\u63a7\u5236\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;windows.h&gt;\n#include &lt;timeapi.h&gt;\n#include &lt;stdio.h&gt;\n\nint main() {\n    \/\/ \u8bbe\u7f6e\u5168\u5c40\u5b9a\u65f6\u5668\u7cbe\u5ea6\u4e3a 1 \u6beb\u79d2\n    timeBeginPeriod(1);\n\n    \/\/ \u7761\u7720 1 \u6beb\u79d2\n    Sleep(1);\n\n    \/\/ \u6062\u590d\u5b9a\u65f6\u5668\u7cbe\u5ea6\n    timeEndPeriod(1);\n\n    printf(\"Slept for 1 millisecond!\\n\");\n    return 0;\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u79cd\u65b9\u6cd5\u5e76\u4e0d\u76f4\u63a5\u5b9e\u73b0\u4e9a\u6beb\u79d2\u7ea7\u7684\u7761\u7720\uff0c\u4f46\u901a\u8fc7\u63d0\u9ad8\u5b9a\u65f6\u5668\u7684\u7cbe\u5ea6\uff0c\u7a0b\u5e8f\u80fd\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u7cbe\u786e\u63a7\u5236\u7761\u7720\u65f6\u95f4\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4f1a\u76f4\u63a5\u5b9e\u73b0\u4e9a\u6beb\u79d2\u7ea7\u7684\u7cbe\u5ea6\uff0c\u4f46\u901a\u8fc7\u63d0\u9ad8\u5b9a\u65f6\u5668\u7cbe\u5ea6\u548c <code>Sleep<\/code> \u51fd\u6570\u7684\u7ed3\u5408\u4f7f\u7528\uff0c\u80fd\u591f\u63d0\u4f9b\u6bd4\u9ed8\u8ba4\u7cbe\u5ea6\u66f4\u9ad8\u7684\u63a7\u5236\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u4f7f\u7528\u9ad8\u7cbe\u5ea6\u5b9a\u65f6\u5668\uff08\u9002\u5408\u66f4\u9ad8\u7cbe\u5ea6\u8981\u6c42\uff09<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u9700\u8981\u8fdb\u4e00\u6b65\u63d0\u9ad8\u7cbe\u5ea6\uff0c\u7279\u522b\u662f\u5728\u5b9e\u65f6\u6027\u8f83\u9ad8\u7684\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u5176\u4ed6\u786c\u4ef6\u5b9a\u65f6\u5668\u6216 Windows \u63d0\u4f9b\u7684\u5b9e\u65f6\u7ebf\u7a0b\uff08\u5982 <code>timeBeginPeriod<\/code> \u548c <code>QueryPerformanceCounter<\/code> \u7ed3\u5408\u4f7f\u7528\uff09\uff0c\u4e0d\u8fc7\u8fd9\u79cd\u65b9\u6cd5\u6d89\u53ca\u5230\u66f4\u590d\u6742\u7684\u786c\u4ef6\u64cd\u4f5c\u548c\u64cd\u4f5c\u7cfb\u7edf\u8c03\u5ea6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u603b\u7ed3<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>QueryPerformanceCounter<\/code><\/strong>\uff1a\u6700\u7cbe\u786e\u7684\u65b9\u6cd5\uff0c\u80fd\u5b9e\u73b0\u4e9a\u6beb\u79d2\u7ea7\u7684\u63a7\u5236\uff0c\u4f46\u53ef\u80fd\u5b58\u5728\u5fae\u5c0f\u7684\u7cfb\u7edf\u5dee\u5f02\u3002<\/li>\n\n\n\n<li><strong><code>timeBeginPeriod<\/code> \/ <code>timeEndPeriod<\/code><\/strong>\uff1a\u901a\u8fc7\u8bbe\u7f6e\u5b9a\u65f6\u5668\u7cbe\u5ea6\u6765\u5b9e\u73b0\u66f4\u9ad8\u7684\u7761\u7720\u7cbe\u5ea6\uff0c\u9002\u7528\u4e8e\u9700\u8981\u8f83\u9ad8\u7cbe\u5ea6\u4f46\u4e0d\u8981\u6c42\u4e9a\u6beb\u79d2\u7ea7\u7cbe\u5ea6\u7684\u573a\u666f\u3002<\/li>\n\n\n\n<li><strong><code>Sleep<\/code><\/strong>\uff1a\u6807\u51c6\u7684 <code>Sleep<\/code> \u51fd\u6570\u4ec5\u9002\u7528\u4e8e\u6beb\u79d2\u7ea7\u522b\u7684\u5ef6\u8fdf\uff0c\u4e0d\u9002\u5408\u9700\u8981\u9ad8\u7cbe\u5ea6\u7684\u60c5\u51b5\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5b9e\u8df5\u4e2d\uff0c\u57fa\u4e8e <code>QueryPerformanceCounter<\/code> \u7684\u65b9\u6cd5\u53ef\u4ee5\u4e3a\u4f60\u63d0\u4f9b\u6700\u63a5\u8fd1\u4e9a\u6beb\u79d2\u7ea7\u7684\u7cbe\u5ea6\u63a7\u5236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Windows \u7cfb\u7edf\u4e0a\uff0c\u6807\u51c6\u7684\u7761\u7720\u51fd\u6570\uff08\u5982 Sleep\uff09\u901a\u5e38\u53ea\u80fd\u63d0\u4f9b\u6beb\u79d2\u7ea7\u522b\u7684\u7cbe\u5ea6\uff0c\u4e0d\u80fd\u6ee1\u8db3\u4e9a\u6beb\u79d2\u7ea7\u7684\u7cbe\u5ea6 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59],"tags":[],"class_list":["post-516","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/516","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=516"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/516\/revisions"}],"predecessor-version":[{"id":517,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/516\/revisions\/517"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}