{"id":52496,"date":"2024-12-03T11:27:52","date_gmt":"2024-12-03T03:27:52","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52496\/"},"modified":"2024-12-03T11:27:52","modified_gmt":"2024-12-03T03:27:52","slug":"%e5%a6%82%e4%bd%95%e4%bb%8e%e6%95%b0%e7%bb%84%e4%b8%ad%e6%88%aa%e5%8f%96%e9%95%bf%e5%ba%a6%e4%b8%ba%e6%8c%87%e5%ae%9a%e5%80%8d%e6%95%b0%e7%9a%84%e5%ad%90%e6%95%b0%e7%bb%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52496\/","title":{"rendered":"\u5982\u4f55\u4ece\u6570\u7ec4\u4e2d\u622a\u53d6\u957f\u5ea6\u4e3a\u6307\u5b9a\u500d\u6570\u7684\u5b50\u6570\u7ec4\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u4ece\u6570\u7ec4\u4e2d\u622a\u53d6\u957f\u5ea6\u4e3a\u6307\u5b9a\u500d\u6570\u7684\u5b50\u6570\u7ec4\uff1f<\/h1>\n<p>\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u4ece\u6570\u7ec4\u4e2d\u622a\u53d6\u957f\u5ea6\u4e3a\u6307\u5b9a\u500d\u6570\u7684\u5b50\u6570\u7ec4\uff1f\u300b<\/span>\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241121\/1732148841673e7e69b14c8.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u4ece\u6570\u7ec4\u4e2d\u622a\u53d6\u957f\u5ea6\u4e3a\u6307\u5b9a\u500d\u6570\u7684\u5b50\u6570\u7ec4\uff1f\u63d2\u56fe\" alt=\"\u5982\u4f55\u4ece\u6570\u7ec4\u4e2d\u622a\u53d6\u957f\u5ea6\u4e3a\u6307\u5b9a\u500d\u6570\u7684\u5b50\u6570\u7ec4\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u7075\u6d3b\u5904\u7406\u6570\u7ec4\u6570\u636e<\/strong><\/p>\n<p>\u7ed9\u5b9a\u4e00\u4e2a\u6570\u7ec4 arr \u548c\u4e00\u4e2a\u53ef\u53d8\u503c a\uff0c\u5982\u4f55\u83b7\u53d6 arr \u4e2d\u7684\u90e8\u5206\u5143\u7d20\uff0c\u4f7f\u5f97 arr \u4e2d\u5143\u7d20\u4e2a\u6570\u4e3a a \u7684\u500d\u6570\u3002\u4f8b\u5982\uff0c\u5f53 a \u4e3a 2 \u65f6\uff0carr \u5e94\u8be5\u662f [9]\uff1b\u800c\u5f53 a \u4e3a 4 \u65f6\uff0carr \u5e94\u8be5\u662f [7, 8, 9]\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u5229\u7528 javascript \u7684 slice() \u65b9\u6cd5\u6765\u622a\u53d6\u6570\u7ec4\u4e2d\u7684\u90e8\u5206\u5143\u7d20\u3002slice() \u65b9\u6cd5\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a\u5f00\u59cb\u7d22\u5f15\u548c\u7ed3\u675f\u7d22\u5f15\u3002<\/p>\n<p>\u4e3a\u4e86\u83b7\u5f97 arr \u4e2d\u957f\u5ea6\u4e3a a \u7684\u500d\u6570\u7684\u5143\u7d20\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u53d6\u4f59\u8fd0\u7b97\u7b26 (%) \u6765\u8ba1\u7b97\u5f00\u59cb\u7d22\u5f15\u3002\u4ee5\u4e0b\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u5b9e\u73b0\uff1a<\/p>\n<pre>const arr = [3,4,5,6,7,8,9];\n\nfunction test(n) {\n  return arr.slice(-(arr.length%n));\n}\n\nconsole.log(test(2)); \/\/ [9]\nconsole.log(test(4)); \/\/ [7, 8, 9]<\/pre>\n<p>\u5728\u8fd9\u4e2a\u4ee3\u7801\u4e2d\uff0ctest() \u51fd\u6570\u63a5\u6536 n \u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de arr \u4e2d\u4ece\u5012\u6570\u7b2c n%arr.length \u4e2a\u5143\u7d20\u5f00\u59cb\u7684\u5b50\u6570\u7ec4\u3002\u4f8b\u5982\uff0c\u5f53 n \u4e3a 2 \u65f6\uff0c\u5f00\u59cb\u7d22\u5f15\u4e3a -(arr.length%2) = -1\uff0c\u5373\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u4ece\u6570\u7ec4\u4e2d\u622a\u53d6\u957f\u5ea6\u4e3a\u6307\u5b9a\u500d\u6570\u7684\u5b50\u6570\u7ec4\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   \u60f3\u7528 Gin \u6784\u5efa API \u9879\u76ee\uff1f\u8fd9\u51e0\u4e2a\u5f00\u6e90\u9879\u76ee\u503c\u5f97\u4e00\u770b\uff01\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4ece\u6570\u7ec4\u4e2d\u622a\u53d6\u957f\u5ea6\u4e3a\u6307\u5b9a\u500d\u6570\u7684\u5b50\u6570\u7ec4\uff1f \u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300a\u5982\u4f55\u4ece\u6570\u7ec4\u4e2d\u622a\u53d6\u957f\u5ea6\u4e3a\u6307\u5b9a\u500d\u6570\u7684\u5b50\u6570\u7ec4\uff1f\u300b\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9\u6587\u7ae0\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01 \u7075\u6d3b\u5904\u7406\u6570\u7ec4\u6570\u636e \u7ed9\u5b9a\u4e00\u4e2a\u6570\u7ec4 arr \u548c\u4e00\u4e2a\u53ef\u53d8\u503c a\uff0c\u5982\u4f55\u83b7\u53d6 arr \u4e2d\u7684\u90e8\u5206\u5143\u7d20\uff0c\u4f7f\u5f97 arr \u4e2d\u5143\u7d20\u4e2a\u6570\u4e3a a \u7684\u500d\u6570\u3002\u4f8b\u5982\uff0c\u5f53 a \u4e3a 2 \u65f6\uff0carr \u5e94\u8be5\u662f [9]\uff1b\u800c\u5f53 a \u4e3a 4 \u65f6\uff0carr \u5e94\u8be5\u662f [7, 8, 9]\u3002 \u89e3\u51b3\u65b9\u6848 \u6211\u4eec\u53ef\u4ee5\u5229\u7528 javascript \u7684 slice() \u65b9\u6cd5\u6765\u622a\u53d6\u6570\u7ec4\u4e2d\u7684\u90e8\u5206\u5143\u7d20\u3002slice() \u65b9\u6cd5\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a\u5f00\u59cb\u7d22\u5f15\u548c\u7ed3\u675f\u7d22\u5f15\u3002 \u4e3a\u4e86\u83b7\u5f97 arr \u4e2d\u957f\u5ea6\u4e3a a \u7684\u500d\u6570\u7684\u5143\u7d20\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528\u53d6\u4f59\u8fd0\u7b97\u7b26 (%) \u6765\u8ba1\u7b97\u5f00\u59cb\u7d22\u5f15\u3002\u4ee5\u4e0b\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u5b9e\u73b0\uff1a const arr = [3,4,5,6,7,8,9]; function test(n) { return arr.slice(-(arr.length%n)); } console.log(test(2)); \/\/ [9] console.log(test(4)); [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-52496","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52496","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=52496"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52496\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=52496"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=52496"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=52496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}