{"id":32143,"date":"2024-11-25T11:48:15","date_gmt":"2024-11-25T03:48:15","guid":{"rendered":"https:\/\/fwq.ai\/blog\/32143\/"},"modified":"2024-11-25T11:48:15","modified_gmt":"2024-11-25T03:48:15","slug":"%e5%be%ae%e4%bf%a1%e5%85%ac%e4%bc%97%e5%8f%b7%e5%bc%80%e5%8f%91%ef%bc%8c%e5%ae%9e%e7%8e%b0%e5%80%92%e8%ae%a1%e6%97%b6%e7%9a%84%e4%b8%80%e4%b8%aa%e5%8a%9f%e8%83%bd%ef%bc%88%e7%ba%af%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/32143\/","title":{"rendered":"\u5fae\u4fe1\u516c\u4f17\u53f7\u5f00\u53d1\uff0c\u5b9e\u73b0\u5012\u8ba1\u65f6\u7684\u4e00\u4e2a\u529f\u80fd\uff08\u7eaf\u4ee3\u7801\uff09"},"content":{"rendered":"<p>\u4ee5\u4e0b\u662f\u6211\u81ea\u5df1\u7f16\u5199\u7684\u4e00\u4e2a\u4ee3\u7801\uff0c\u529f\u80fd\u662f\u5728\u5fae\u4fe1\u516c\u4f17\u53f7\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u5b9e\u73b0\u5012\u8ba1\u65f6\u7684\u3002\u6548\u679c\u5982\u4e0b\uff0c\u8ba2\u5355\u5df2\u63d0\u4ea4\uff0c\u8bf7\u57282\u520657\u79d2\u5185\u5b8c\u6210\u652f\u4ed8\u3002\u7eaf\u4ee3\u7801\u89e3\u6790\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/\/upload\/image\/605\/196\/269\/1532680154202500.png\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u516c\u4f17\u53f7\u5f00\u53d1\uff0c\u5b9e\u73b0\u5012\u8ba1\u65f6\u7684\u4e00\u4e2a\u529f\u80fd\uff08\u7eaf\u4ee3\u7801\uff09\u63d2\u56fe\" alt=\"\u5fae\u4fe1\u516c\u4f17\u53f7\u5f00\u53d1\uff0c\u5b9e\u73b0\u5012\u8ba1\u65f6\u7684\u4e00\u4e2a\u529f\u80fd\uff08\u7eaf\u4ee3\u7801\uff09\u63d2\u56fe\" \/><\/p>\n<p>\u5f00\u59cb\u7684\u601d\u8def\u6ca1\u6709\u8003\u8651\u9875\u9762\u5728\u540e\u53f0\u8fd0\u884c\u4ee5\u53ca\u9501\u5c4f\u7b49\u60c5\u51b5\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>let&nbsp;interval&nbsp;=&nbsp;setInterval(()&nbsp;=&amp;gt;&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;{staticTime}&nbsp;=&nbsp;this.state;\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;staticTime&nbsp;=&nbsp;staticTime&nbsp;-&nbsp;1;\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(staticTime&nbsp;&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;{backGroundTime,&nbsp;staticTime}&nbsp;=&nbsp;this.state;\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;this.setState({\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;backGroundTime:0\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;});\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;staticTime&nbsp;=&nbsp;staticTime&nbsp;-&nbsp;backGroundTime&nbsp;-&nbsp;1;&nbsp;\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(staticTime&nbsp;&lt;p&gt;listenPageShowHideHandle = () =&amp;gt;{&lt;\/p&gt;&lt;pre class=\"brush:js;toolbar:false;\"&gt;let&nbsp;{backGroundTime}&nbsp;=&nbsp;this.state;\nlet&nbsp;start,&nbsp;end;\nlet&nbsp;self&nbsp;=&nbsp;this;\ndocument.addEventListener(\"visibilitychange\",&nbsp;function()&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;if(document.visibilityState&nbsp;==&nbsp;'hidden'){\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;start&nbsp;=&nbsp;new&nbsp;Date().getTime();\n&nbsp;&nbsp;&nbsp;&nbsp;}else&nbsp;if(document.visibilityState&nbsp;==&nbsp;'visible'){\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;end&nbsp;=&nbsp;new&nbsp;Date().getTime();\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;backGroundTime&nbsp;=&nbsp;Math.floor((end&nbsp;-&nbsp;start)\/1000);\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;self.setState({backGroundTime});\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;console.log('\u65f6\u95f4\u5dee\uff1a',&nbsp;backGroundTime);\n&nbsp;&nbsp;&nbsp;&nbsp;}\n&nbsp;&nbsp;&nbsp;&nbsp;console.log(&nbsp;document.visibilityState&nbsp;);\n});<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>}<\/p>\n<pre>\u6539\u9020\u4e4b\u540e\u53d1\u5148\u95ee\u9898\u4f9d\u7136\u5b58\u5728\u3002\u539f\u56e0\u662f\uff1a\nYou&nbsp;cannot&nbsp;continue&nbsp;to&nbsp;run&nbsp;javascript&nbsp;while&nbsp;the&nbsp;iPhone&nbsp;is&nbsp;sleeping&nbsp;using&nbsp;setTimeout(),&nbsp;however.When&nbsp;the&nbsp;phone&nbsp;is&nbsp;put&nbsp;to&nbsp;sleep,&nbsp;Safari&nbsp;will&nbsp;kill&nbsp;any&nbsp;running&nbsp;javascript&nbsp;processes&nbsp;using&nbsp;setTimeout().&nbsp;Check&nbsp;out&nbsp;this&nbsp;answer&nbsp;here&nbsp;for&nbsp;some&nbsp;reasons&nbsp;why&nbsp;this&nbsp;is&nbsp;done.\n\n**\u89e3\u51b3\u65b9\u6848\uff1a**\n\u8ba2\u5355\u751f\u6210\u7684\u65f6\u5019\u6211\u4eec\u8bb0\u5f55\u4e0b\u8fd9\u4e2a\u65f6\u95f4\u4e3aA\uff0c&nbsp;\u65f6\u95f4\u95f4\u9694\u4e3aB\uff083\u5206\u949f\u5185\u9700\u8981\u4ed8\u6b3e\uff0cB\u4e3a3*60*1000\uff09\uff0cC\u4e3a\u73b0\u5728\u7684\u65f6\u95f4\u3002\u6211\u4eec\u4f7f\u7528setInterval&nbsp;\u6bcf\u4e2a1\u79d2\u8bfb\u53d6\u4e00\u4e0b\u65f6\u95f4\u3002\u90a3\u4e48\u5012\u8ba1\u65f6\u65f6\u95f4&nbsp;==&nbsp;A+B-C\uff0c\u4ee3\u7801\u5982\u4e0b\n\n&nbsp;let&nbsp;interval&nbsp;=&nbsp;setInterval(()=&amp;gt;{\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;{orderTime,&nbsp;staticTime}&nbsp;=&nbsp;this.state;\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;nowTime&nbsp;=&nbsp;Date.now();\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;sub&nbsp;=&nbsp;Math.floor((orderTime&nbsp;+&nbsp;staticTime&nbsp;-&nbsp;nowTime)\/1000);\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;console.log('sub',sub);\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(sub&lt;p&gt;apache php mysql&lt;\/p&gt;&lt;p&gt;\u76f8\u5173\u6587\u7ae0\uff1a&lt;\/p&gt;&lt;p&gt;&lt;a href=\"http:\/\/www.php.cn\/php-notebook-227865.html\" target=\"_self\"&gt;\u5fae\u4fe1\u516c\u4f17\u53f7\u6388\u6743\u8bbe\u7f6e\uff0c\u5fae\u4fe1\u516c\u4f17\u6388\u6743&lt;\/a&gt;&lt;\/p&gt;&lt;p&gt;&lt;a href=\"http:\/\/www.php.cn\/php-notebook-168216.html\" target=\"_self\"&gt;\u5fae\u4fe1\u516c\u4f17\u53f7\u70b9\u51fb\u83dc\u5355\u5373\u53ef\u6253\u5f00\u5e76\u767b\u5f55\u5fae\u7ad9\u7684\u5b9e\u73b0\u65b9\u6cd5&lt;\/a&gt;&lt;\/p&gt;&lt;p&gt;\u76f8\u5173\u89c6\u9891\uff1a&lt;\/p&gt;&lt;p class=\"t\" style=\"margin: 0px 0px 1px; padding: 0px; list-style: none; font-weight: 400; font-size: medium; line-height: 1.54; color: rgb(51, 51, 51); font-family: arial; white-space: normal; background-color: rgb(255, 255, 255);\"&gt;&lt;a href=\"http:\/\/www.php.cn\/course\/320.html\" target=\"_self\"&gt;\u4f20\u667a\u3001\u9ed1\u9a6c\u5fae\u4fe1\u516c\u4f17\u5e73\u53f0\u5f00\u53d1\u89c6\u9891\u6559\u7a0b&lt;\/a&gt;&lt;\/p&gt;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5fae\u4fe1\u516c\u4f17\u53f7\u5f00\u53d1\uff0c\u5b9e\u73b0\u5012\u8ba1\u65f6\u7684\u4e00\u4e2a\u529f\u80fd\uff08\u7eaf\u4ee3\u7801\uff09\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ee5\u4e0b\u662f\u6211\u81ea\u5df1\u7f16\u5199\u7684\u4e00\u4e2a\u4ee3\u7801\uff0c\u529f\u80fd\u662f\u5728\u5fae\u4fe1\u516c\u4f17\u53f7\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u5b9e\u73b0\u5012\u8ba1\u65f6\u7684\u3002\u6548\u679c\u5982\u4e0b\uff0c\u8ba2\u5355\u5df2\u63d0\u4ea4\uff0c\u8bf7\u57282\u520657\u79d2\u5185\u5b8c\u6210\u652f\u4ed8\u3002\u7eaf\u4ee3\u7801\u89e3\u6790\u3002 \u5f00\u59cb\u7684\u601d\u8def\u6ca1\u6709\u8003\u8651\u9875\u9762\u5728\u540e\u53f0\u8fd0\u884c\u4ee5\u53ca\u9501\u5c4f\u7b49\u60c5\u51b5\u3002\u4ee3\u7801\u5982\u4e0b\uff1a let&nbsp;interval&nbsp;=&nbsp;setInterval(()&nbsp;=&amp;gt;&nbsp;{ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;{staticTime}&nbsp;=&nbsp;this.state; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;staticTime&nbsp;=&nbsp;staticTime&nbsp;&#8211;&nbsp;1; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(staticTime&nbsp;&nbsp;{ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;{backGroundTime,&nbsp;staticTime}&nbsp;=&nbsp;this.state; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;this.setState({ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;backGroundTime:0 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;staticTime&nbsp;=&nbsp;staticTime&nbsp;&#8211;&nbsp;backGroundTime&nbsp;&#8211;&nbsp;1;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;(staticTime&nbsp;&lt;p&gt;listenPageShowHideHandle = () =&amp;gt;{&lt;\/p&gt;&lt;pre class=&#8221;brush:js;toolbar:false;&#8221;&gt;let&nbsp;{backGroundTime}&nbsp;=&nbsp;this.state; let&nbsp;start,&nbsp;end; let&nbsp;self&nbsp;=&nbsp;this; document.addEventListener(&#8220;visibilitychange&#8221;,&nbsp;function()&nbsp;{ &nbsp;&nbsp;&nbsp;&nbsp;if(document.visibilityState&nbsp;==&nbsp;&#8216;hidden&#8217;){ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;start&nbsp;=&nbsp;new&nbsp;Date().getTime(); &nbsp;&nbsp;&nbsp;&nbsp;}else&nbsp;if(document.visibilityState&nbsp;==&nbsp;&#8216;visible&#8217;){ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;end&nbsp;=&nbsp;new&nbsp;Date().getTime(); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;backGroundTime&nbsp;=&nbsp;Math.floor((end&nbsp;&#8211;&nbsp;start)\/1000); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;self.setState({backGroundTime}); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;console.log(&#8216;\u65f6\u95f4\u5dee\uff1a&#8217;,&nbsp;backGroundTime); &nbsp;&nbsp;&nbsp;&nbsp;} &nbsp;&nbsp;&nbsp;&nbsp;console.log(&nbsp;document.visibilityState&nbsp;); }); \u767b\u5f55\u540e\u590d\u5236 } \u6539\u9020\u4e4b\u540e\u53d1\u5148\u95ee\u9898\u4f9d\u7136\u5b58\u5728\u3002\u539f\u56e0\u662f\uff1a You&nbsp;cannot&nbsp;continue&nbsp;to&nbsp;run&nbsp;javascript&nbsp;while&nbsp;the&nbsp;iPhone&nbsp;is&nbsp;sleeping&nbsp;using&nbsp;setTimeout(),&nbsp;however.When&nbsp;the&nbsp;phone&nbsp;is&nbsp;put&nbsp;to&nbsp;sleep,&nbsp;Safari&nbsp;will&nbsp;kill&nbsp;any&nbsp;running&nbsp;javascript&nbsp;processes&nbsp;using&nbsp;setTimeout().&nbsp;Check&nbsp;out&nbsp;this&nbsp;answer&nbsp;here&nbsp;for&nbsp;some&nbsp;reasons&nbsp;why&nbsp;this&nbsp;is&nbsp;done. **\u89e3\u51b3\u65b9\u6848\uff1a** \u8ba2\u5355\u751f\u6210\u7684\u65f6\u5019\u6211\u4eec\u8bb0\u5f55\u4e0b\u8fd9\u4e2a\u65f6\u95f4\u4e3aA\uff0c&nbsp;\u65f6\u95f4\u95f4\u9694\u4e3aB\uff083\u5206\u949f\u5185\u9700\u8981\u4ed8\u6b3e\uff0cB\u4e3a3*60*1000\uff09\uff0cC\u4e3a\u73b0\u5728\u7684\u65f6\u95f4\u3002\u6211\u4eec\u4f7f\u7528setInterval&nbsp;\u6bcf\u4e2a1\u79d2\u8bfb\u53d6\u4e00\u4e0b\u65f6\u95f4\u3002\u90a3\u4e48\u5012\u8ba1\u65f6\u65f6\u95f4&nbsp;==&nbsp;A+B-C\uff0c\u4ee3\u7801\u5982\u4e0b &nbsp;let&nbsp;interval&nbsp;=&nbsp;setInterval(()=&amp;gt;{ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;{orderTime,&nbsp;staticTime}&nbsp;=&nbsp;this.state; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;nowTime&nbsp;=&nbsp;Date.now(); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;sub&nbsp;=&nbsp;Math.floor((orderTime&nbsp;+&nbsp;staticTime&nbsp;&#8211;&nbsp;nowTime)\/1000); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;console.log(&#8216;sub&#8217;,sub); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(sub&lt;p&gt;apache php mysql&lt;\/p&gt;&lt;p&gt;\u76f8\u5173\u6587\u7ae0\uff1a&lt;\/p&gt;&lt;p&gt;&lt;a href=&#8221;http:\/\/www.php.cn\/php-notebook-227865.html&#8221; target=&#8221;_self&#8221;&gt;\u5fae\u4fe1\u516c\u4f17\u53f7\u6388\u6743\u8bbe\u7f6e\uff0c\u5fae\u4fe1\u516c\u4f17\u6388\u6743&lt;\/a&gt;&lt;\/p&gt;&lt;p&gt;&lt;a href=&#8221;http:\/\/www.php.cn\/php-notebook-168216.html&#8221; target=&#8221;_self&#8221;&gt;\u5fae\u4fe1\u516c\u4f17\u53f7\u70b9\u51fb\u83dc\u5355\u5373\u53ef\u6253\u5f00\u5e76\u767b\u5f55\u5fae\u7ad9\u7684\u5b9e\u73b0\u65b9\u6cd5&lt;\/a&gt;&lt;\/p&gt;&lt;p&gt;\u76f8\u5173\u89c6\u9891\uff1a&lt;\/p&gt;&lt;p class=&#8221;t&#8221; style=&#8221;margin: 0px 0px 1px; padding: 0px; list-style: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-32143","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/32143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=32143"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/32143\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=32143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=32143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=32143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}