{"id":11242,"date":"2024-03-14T13:39:59","date_gmt":"2024-03-14T13:39:59","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-write-a-timer-code-in-c\/"},"modified":"2025-08-04T09:18:57","modified_gmt":"2025-08-04T09:18:57","slug":"how-to-write-a-timer-code-in-c","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-write-a-timer-code-in-c\/","title":{"rendered":"C++ Timer Code Example"},"content":{"rendered":"<p>Here is a basic example of a C++ timer code:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;iostream&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;chrono&gt;<\/span><\/span>\r\n\r\n<span class=\"hljs-function\"><span class=\"hljs-type\">int<\/span> <span class=\"hljs-title\">main<\/span><span class=\"hljs-params\">()<\/span> <\/span>{\r\n    <span class=\"hljs-comment\">\/\/ \u83b7\u53d6\u5f53\u524d\u65f6\u95f4<\/span>\r\n    <span class=\"hljs-keyword\">auto<\/span> start = std::chrono::high_resolution_clock::<span class=\"hljs-built_in\">now<\/span>();\r\n    \r\n    <span class=\"hljs-comment\">\/\/ \u6267\u884c\u9700\u8981\u8ba1\u65f6\u7684\u4ee3\u7801<\/span>\r\n    <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-type\">int<\/span> i = <span class=\"hljs-number\">0<\/span>; i &lt; <span class=\"hljs-number\">1000000<\/span>; ++i) {\r\n        <span class=\"hljs-comment\">\/\/ do something<\/span>\r\n    }\r\n    \r\n    <span class=\"hljs-comment\">\/\/ \u83b7\u53d6\u7ed3\u675f\u65f6\u95f4<\/span>\r\n    <span class=\"hljs-keyword\">auto<\/span> end = std::chrono::high_resolution_clock::<span class=\"hljs-built_in\">now<\/span>();\r\n    \r\n    <span class=\"hljs-comment\">\/\/ \u8ba1\u7b97\u65f6\u95f4\u5dee<\/span>\r\n    std::chrono::duration&lt;<span class=\"hljs-type\">double<\/span>&gt; duration = end - start;\r\n    \r\n    <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\u8ba1\u65f6\u7ed3\u679c<\/span>\r\n    std::cout &lt;&lt; <span class=\"hljs-string\">\"Execution time: \"<\/span> &lt;&lt; duration.<span class=\"hljs-built_in\">count<\/span>() &lt;&lt; <span class=\"hljs-string\">\" seconds\"<\/span> &lt;&lt; std::endl;\r\n    \r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n<p>In this example, we are using std::chrono::high_resolution_clock to get the current time and calculate the time difference to get the execution time of the code. You can replace the code that needs to be timed with your own code.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here is a basic example of a C++ timer code: #include &lt;iostream&gt; #include &lt;chrono&gt; int main() { \/\/ \u83b7\u53d6\u5f53\u524d\u65f6\u95f4 auto start = std::chrono::high_resolution_clock::now(); \/\/ \u6267\u884c\u9700\u8981\u8ba1\u65f6\u7684\u4ee3\u7801 for (int i = 0; i &lt; 1000000; ++i) { \/\/ do something } \/\/ \u83b7\u53d6\u7ed3\u675f\u65f6\u95f4 auto end = std::chrono::high_resolution_clock::now(); \/\/ \u8ba1\u7b97\u65f6\u95f4\u5dee std::chrono::duration&lt;double&gt; duration = end &#8211; start; \/\/ \u8f93\u51fa\u8ba1\u65f6\u7ed3\u679c [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[11863,7178,14412,14413,14414],"class_list":["post-11242","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-c-example","tag-c-timer","tag-chrono-library","tag-performance-measurement","tag-timing-code"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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