{"id":1552,"date":"2024-11-10T09:14:15","date_gmt":"2024-11-10T01:14:15","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1552\/"},"modified":"2024-11-10T09:14:15","modified_gmt":"2024-11-10T01:14:15","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88%e6%88%91%e7%9a%84%e5%86%92%e6%b3%a1%e6%8e%92%e5%ba%8f%e5%b0%81%e8%a3%85%e6%b2%a1%e6%9c%89concat%e6%96%b9%e6%b3%95%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1552\/","title":{"rendered":"\u4e3a\u4ec0\u4e48\u6211\u7684\u5192\u6ce1\u6392\u5e8f\u5c01\u88c5\u6ca1\u6709concat\u65b9\u6cd5\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173046377368322.jpg\" class=\"aligncenter\" title=\"\u4e3a\u4ec0\u4e48\u6211\u7684\u5192\u6ce1\u6392\u5e8f\u5c01\u88c5\u6ca1\u6709concat\u65b9\u6cd5\uff1f\u63d2\u56fe\" alt=\"\u4e3a\u4ec0\u4e48\u6211\u7684\u5192\u6ce1\u6392\u5e8f\u5c01\u88c5\u6ca1\u6709concat\u65b9\u6cd5\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u4e3a\u4ec0\u4e48\u7684\u5c01\u88c5\u6ca1\u6709 concat \u65b9\u6cd5\uff1f<\/strong><\/p>\n<p>\u60a8\u5728\u4f7f\u7528\u5192\u6ce1\u6392\u5e8f\u5c01\u88c5\u65f6\u9047\u5230\u7684\u9519\u8bef\u662f\u65b9\u6cd5 concat() \u7684\u7f3a\u5931\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u60a8\u7684\u7279\u5b9a\u4ee3\u7801\u4e2d\uff0c\u60a8\u5728\u4ee5\u4e0b\u6761\u4ef6\u4e0b\u76f4\u63a5\u8fd4\u56de\uff1a<\/p>\n<pre>if (length &lt;= 1) {\n  return\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u4e0d\u4f1a\u521b\u5efa\u4e00\u4e2a\u7a7a\u6570\u7ec4\u5e76\u8fd4\u56de\u5b83\uff0c\u800c\u662f\u76f4\u63a5\u8fd4\u56de undefined\u3002\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u60a8\u53ef\u4ee5\u66f4\u6539\u4ee3\u7801\u4e3a\uff1a<\/p>\n<pre>if (length &lt;= 1) {\n  return []\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u6837\uff0c\u5982\u679c\u6570\u7ec4\u957f\u5ea6\u7b49\u4e8e\u6216\u5c0f\u4e8e 1\uff0c\u5b83\u5c06\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6570\u7ec4\uff0c\u800c\u4e0d\u662f undefined\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u4e3a\u4ec0\u4e48\u6211\u7684\u5c01\u88c5\u6ca1\u6709concat\u65b9\u6cd5\uff1f\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>\u4e3a\u4ec0\u4e48\u7684\u5c01\u88c5\u6ca1\u6709 concat \u65b9\u6cd5\uff1f \u60a8\u5728\u4f7f\u7528\u5192\u6ce1\u6392\u5e8f\u5c01\u88c5\u65f6\u9047\u5230\u7684\u9519\u8bef\u662f\u65b9\u6cd5 concat() \u7684\u7f3a\u5931\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u60a8\u7684\u7279\u5b9a\u4ee3\u7801\u4e2d\uff0c\u60a8\u5728\u4ee5\u4e0b\u6761\u4ef6\u4e0b\u76f4\u63a5\u8fd4\u56de\uff1a if (length &lt;= 1) { return } \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u4e0d\u4f1a\u521b\u5efa\u4e00\u4e2a\u7a7a\u6570\u7ec4\u5e76\u8fd4\u56de\u5b83\uff0c\u800c\u662f\u76f4\u63a5\u8fd4\u56de undefined\u3002\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u60a8\u53ef\u4ee5\u66f4\u6539\u4ee3\u7801\u4e3a\uff1a if (length &lt;= 1) { return [] } \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u6837\uff0c\u5982\u679c\u6570\u7ec4\u957f\u5ea6\u7b49\u4e8e\u6216\u5c0f\u4e8e 1\uff0c\u5b83\u5c06\u8fd4\u56de\u4e00\u4e2a\u7a7a\u6570\u7ec4\uff0c\u800c\u4e0d\u662f undefined\u3002 \u4ee5\u4e0a\u5c31\u662f\u4e3a\u4ec0\u4e48\u6211\u7684\u5c01\u88c5\u6ca1\u6709concat\u65b9\u6cd5\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-1552","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1552","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=1552"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1552\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=1552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=1552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=1552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}