{"id":217860,"date":"2023-12-23T01:28:28","date_gmt":"2023-12-22T17:28:28","guid":{"rendered":"https:\/\/www.idc.net\/help\/217860\/"},"modified":"2023-12-23T01:28:28","modified_gmt":"2023-12-22T17:28:28","slug":"php%e5%87%bd%e6%95%b0%ef%bc%9acos","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/217860\/","title":{"rendered":"PHP\u51fd\u6570\uff1acos"},"content":{"rendered":"<h1 id=\"php%e5%87%bd%e6%95%b0%ef%bc%9acos-oopGZHjglC\">PHP\u51fd\u6570\uff1acos<\/h1>\n<p>\u5728PHP\u4e2d\uff0ccos()\u51fd\u6570\u7528\u4e8e\u8ba1\u7b97\u7ed9\u5b9a\u89d2\u5ea6\u7684\u4f59\u5f26\u503c\u3002\u4f59\u5f26\u51fd\u6570\u662f\u4e09\u89d2\u51fd\u6570\u4e2d\u7684\u4e00\u79cd\uff0c\u5b83\u8868\u793a\u4e00\u4e2a\u89d2\u7684\u90bb\u8fb9\u4e0e\u659c\u8fb9\u7684\u6bd4\u503c\u3002<\/p>\n<h2 id=\"%e8%af%ad%e6%b3%95-oopGZHjglC\">\u8bed\u6cd5<\/h2>\n<p>cos(angle)<\/p>\n<p>\u53c2\u6570\uff1a<\/p>\n<ul>\n<li><strong>angle<\/strong>\uff1a\u5fc5\u9700\uff0c\u8868\u793a\u8981\u8ba1\u7b97\u4f59\u5f26\u503c\u7684\u89d2\u5ea6\uff0c\u5355\u4f4d\u4e3a\u5f27\u5ea6\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%bf%94%e5%9b%9e%e5%80%bc-oopGZHjglC\">\u8fd4\u56de\u503c<\/h2>\n<p>cos()\u51fd\u6570\u8fd4\u56de\u7ed9\u5b9a\u89d2\u5ea6\u7684\u4f59\u5f26\u503c\uff0c\u8303\u56f4\u5728-1\u52301\u4e4b\u95f4\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b-oopGZHjglC\">\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528cos()\u51fd\u6570\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>&lt;?php\n$angle = 0.5;\n$cosValue = cos($angle);\necho \"\u89d2\u5ea6 \" . $angle . \" \u7684\u4f59\u5f26\u503c\u662f\uff1a\" . $cosValue;\n?&gt;\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre><code>\u89d2\u5ea6 0.5 \u7684\u4f59\u5f26\u503c\u662f\uff1a0.87758256189037\n<\/code><\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u8ba1\u7b97\u4e86\u89d2\u5ea6\u4e3a0.5\u5f27\u5ea6\u7684\u4f59\u5f26\u503c\uff0c\u5e76\u5c06\u7ed3\u679c\u6253\u5370\u51fa\u6765\u3002<\/p>\n<h2 id=\"%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af-oopGZHjglC\">\u5e94\u7528\u573a\u666f<\/h2>\n<p>cos()\u51fd\u6570\u5728\u5f88\u591a\u6570\u5b66\u548c\u79d1\u5b66\u8ba1\u7b97\u4e2d\u90fd\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\uff1a<\/p>\n<h3 id=\"1-%e4%b8%89%e8%a7%92%e5%bd%a2%e8%ae%a1%e7%ae%97-oopGZHjglC\">1. \u4e09\u89d2\u5f62\u8ba1\u7b97<\/h3>\n<p>\u5728\u8ba1\u7b97\u4e09\u89d2\u5f62\u7684\u5404\u4e2a\u89d2\u5ea6\u548c\u8fb9\u957f\u65f6\uff0c\u4f59\u5f26\u51fd\u6570\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u5de5\u5177\u3002\u901a\u8fc7\u5df2\u77e5\u4e24\u6761\u8fb9\u7684\u957f\u5ea6\u548c\u5b83\u4eec\u4e4b\u95f4\u7684\u5939\u89d2\uff0c\u53ef\u4ee5\u4f7f\u7528\u4f59\u5f26\u51fd\u6570\u6765\u8ba1\u7b97\u7b2c\u4e09\u6761\u8fb9\u7684\u957f\u5ea6\u3002<\/p>\n<h3 id=\"2-%e7%89%a9%e7%90%86%e5%ad%a6-oopGZHjglC\">2. \u7269\u7406\u5b66<\/h3>\n<p>\u5728\u7269\u7406\u5b66\u4e2d\uff0c\u4f59\u5f26\u51fd\u6570\u7528\u4e8e\u63cf\u8ff0\u5468\u671f\u6027\u8fd0\u52a8\u7684\u53d8\u5316\u3002\u4f8b\u5982\uff0c\u5f53\u7269\u4f53\u6cbf\u7740\u5706\u5468\u8fd0\u52a8\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4f59\u5f26\u51fd\u6570\u6765\u63cf\u8ff0\u7269\u4f53\u7684\u4f4d\u7f6e\u968f\u65f6\u95f4\u7684\u53d8\u5316\u3002<\/p>\n<h3 id=\"3-%e4%bf%a1%e5%8f%b7%e5%a4%84%e7%90%86-oopGZHjglC\">3. \u4fe1\u53f7\u5904\u7406<\/h3>\n<p>\u5728\u4fe1\u53f7\u5904\u7406\u4e2d\uff0c\u4f59\u5f26\u51fd\u6570\u88ab\u5e7f\u6cdb\u7528\u4e8e\u5206\u6790\u548c\u5904\u7406\u5468\u671f\u6027\u4fe1\u53f7\u3002\u901a\u8fc7\u5c06\u4fe1\u53f7\u4e0e\u4f59\u5f26\u51fd\u6570\u8fdb\u884c\u76f8\u5173\u6027\u5206\u6790\uff0c\u53ef\u4ee5\u63d0\u53d6\u51fa\u4fe1\u53f7\u4e2d\u7684\u5468\u671f\u6027\u6210\u5206\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-oopGZHjglC\">\u603b\u7ed3<\/h2>\n<p>\u5728PHP\u4e2d\uff0ccos()\u51fd\u6570\u662f\u4e00\u4e2a\u7528\u4e8e\u8ba1\u7b97\u7ed9\u5b9a\u89d2\u5ea6\u7684\u4f59\u5f26\u503c\u7684\u51fd\u6570\u3002\u5b83\u5728\u6570\u5b66\u548c\u79d1\u5b66\u8ba1\u7b97\u4e2d\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u5305\u62ec\u4e09\u89d2\u5f62\u8ba1\u7b97\u3001\u7269\u7406\u5b66\u548c\u4fe1\u53f7\u5904\u7406\u7b49\u9886\u57df\u3002<\/p>\n<h3 id=\"%e9%a6%99%e6%b8%af%e6%9c%8d%e5%8a%a1%e5%99%a8%e9%a6%96%e9%80%89%e5%90%8e%e6%b5%aa%e4%ba%91-oopGZHjglC\">\u9999\u6e2f\u670d\u52a1\u5668\u9996\u9009\u540e\u6d6a\u4e91<\/h3>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u53ef\u9760\u7684\u9999\u6e2f\u670d\u52a1\u5668\u63d0\u4f9b\u5546\uff0c\u540e\u6d6a\u4e91\u662f\u60a8\u7684\u9996\u9009\u3002\u6211\u4eec\u63d0\u4f9b\u9ad8\u6027\u80fd\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff0c\u786e\u4fdd\u60a8\u7684\u7f51\u7ad9\u548c\u5e94\u7528\u7a0b\u5e8f\u59cb\u7ec8\u4fdd\u6301\u7a33\u5b9a\u548c\u53ef\u9760\u3002<\/p>\n<p>\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u6211\u4eec\u7684\u9999\u6e2f\u670d\u52a1\u5668\uff1a<a href=\"https:\/\/idc.net\/\u9999\u6e2f\u670d\u52a1\u5668\">https:\/\/idc.net\/\u9999\u6e2f\u670d\u52a1\u5668<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP\u51fd\u6570\uff1acos \u5728PHP\u4e2d\uff0ccos()\u51fd\u6570\u7528\u4e8e\u8ba1\u7b97\u7ed9\u5b9a\u89d2\u5ea6\u7684\u4f59\u5f26\u503c\u3002\u4f59\u5f26\u51fd\u6570\u662f\u4e09\u89d2\u51fd\u6570\u4e2d\u7684\u4e00\u79cd\uff0c\u5b83\u8868\u793a\u4e00\u4e2a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[197851],"tags":[],"class_list":["post-217860","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217860","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=217860"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217860\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=217860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=217860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=217860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}