{"id":200798,"date":"2025-05-06T14:46:27","date_gmt":"2025-05-06T06:46:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200798\/"},"modified":"2025-05-06T14:46:27","modified_gmt":"2025-05-06T06:46:27","slug":"%e4%b8%80%e5%af%b9%e5%a4%9a%e4%b8%9a%e5%8a%a1%e5%85%b3%e7%b3%bb%e5%88%86%e9%a1%b5%e6%9f%a5%e8%af%a2%ef%bc%9a%e5%a6%82%e4%bd%95%e9%ab%98%e6%95%88%e7%ad%9b%e9%80%89%e5%a4%9a%e4%b8%80%e4%be%a7%e6%9d%a1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200798\/","title":{"rendered":"\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\uff1a\u5982\u4f55\u9ad8\u6548\u7b5b\u9009\u591a\u4e00\u4fa7\u6761\u4ef6\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\uff1a\u5982\u4f55\u9ad8\u6548\u7b5b\u9009\u591a\u4e00\u4fa7\u6761\u4ef6\uff1f<\/h1>\n<p>\u6700\u8fd1\u53d1\u73b0\u4e0d\u5c11\u5c0f\u4f19\u4f34\u90fd\u5bf9\u5f88\u611f\u5174\u8da3\uff0c\u6240\u4ee5\u4eca\u5929\u7ee7\u7eed\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u76f8\u5173\u7684\u77e5\u8bc6\uff0c\u672c\u6587\u4e3b\u8981\u5185\u5bb9\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01\u5f53\u7136\u5982\u679c\u9605\u8bfb\u672c\u6587\u65f6\u5b58\u5728\u4e0d\u540c\u60f3\u6cd5\uff0c\u53ef\u4ee5\u5728\u8bc4\u8bba\u4e2d\u8868\u8fbe\uff0c\u4f46\u662f\u8bf7\u52ff\u4f7f\u7528\u8fc7\u6fc0\u7684\u63aa\u8f9e~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241115\/17316335326736a17c54980.jpg\" class=\"aligncenter\"><\/p>\n<p><strong> \u4e1a\u52a1\u5173\u7cfb\u4e00\u5bf9\u591a\u5206\u9875\uff0c\u591a\u4e00\u4fa7\u6761\u4ef6\u67e5\u8be2<\/strong><\/p>\n<p>\u5728\u8bbe\u8ba1\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5e76\u9700\u8981\u5206\u9875\u548c\u67e5\u8be2\u591a\u4e00\u4fa7\u6761\u4ef6\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5\u4e00\uff1a\u4e24\u8868\u8bbe\u8ba1<\/strong><\/p>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u5c06\u4e1a\u52a1\u5173\u7cfb\u62c6\u5206\u4e3a\u4e24\u5f20\u8868\uff1a\u4e3b\u8868\uff08user\uff09\u548c\u4ece\u8868\uff08tag\uff09 \u3002\u4e3b\u8868\u5b58\u50a8\u4e3b\u4f53\u4fe1\u606f\uff0c\u4ece\u8868\u5b58\u50a8\u4e3b\u4f53\u4e0e\u76f8\u5173\u6807\u7b7e\u4e4b\u95f4\u7684\u5173\u8054\u3002 <\/p>\n<p><strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u6570\u636e\u7ed3\u6784\u6e05\u6670\uff0c\u7b26\u5408\u5173\u7cfb\u6570\u636e\u5e93\u89c4\u8303\u3002 <\/li>\n<li>\u67e5\u8be2\u591a\u4e00\u4fa7\u6761\u4ef6\u65b9\u4fbf\uff0c\u6027\u80fd\u826f\u597d\u3002 <\/li>\n<\/ul>\n<p><strong>\u7f3a\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u5206\u9875\u65f6\u9700\u8981\u901a\u8fc7\u5173\u8054\u67e5\u8be2\u83b7\u53d6\u6807\u7b7e\uff0c\u53ef\u80fd\u5f71\u54cd\u6027\u80fd\u3002 <\/li>\n<li>\u5f53\u6807\u7b7e\u6570\u91cf\u4f17\u591a\u65f6\uff0c\u4ece\u8868\u4f1a\u53d8\u5f97\u975e\u5e38\u5e9e\u5927\u3002 <\/li>\n<\/ul>\n<p><strong>\u65b9\u6cd5\u4e8c\uff1a\u5355\u8868\u8bbe\u8ba1<\/strong><\/p>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u5c06\u4e1a\u52a1\u5173\u7cfb\u5b58\u50a8\u5728\u5355\u5f20\u8868\u4e2d\uff0c\u4f7f\u7528\u4e00\u4e2a\u5b57\u6bb5\uff08\u5982tag\uff09\u5b58\u50a8\u6240\u6709\u6807\u7b7e\u3002 <\/p>\n<p><strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u6570\u636e\u7ed3\u6784\u7b80\u5355\uff0c\u6613\u4e8e\u7ba1\u7406\u3002 <\/li>\n<li>\u5206\u9875\u65f6\u4e0d\u9700\u8981\u5173\u8054\u67e5\u8be2\uff0c\u6027\u80fd\u8f83\u597d\u3002 <\/li>\n<\/ul>\n<p><strong>\u7f3a\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u8fdd\u53cd\u4e86\u6570\u636e\u5e93\u7b2c\u4e00\u8303\u5f0f\uff0c\u6570\u636e\u5197\u4f59\u5ea6\u9ad8\u3002 <\/li>\n<li>\u67e5\u8be2\u591a\u4e00\u4fa7\u6761\u4ef6\u65f6\u9700\u8981\u4f7f\u7528like\u67e5\u8be2\uff0c\u6027\u80fd\u8f83\u5dee\uff0c\u4e14\u7ed3\u679c\u4e0d\u51c6\u786e\u3002 <\/li>\n<\/ul>\n<p><strong>\u66f4\u4f18\u65b9\u6848<\/strong><\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u4e0a\u8ff0\u65b9\u6cd5\u7684\u7f3a\u70b9\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u4f18\u5316\u65b9\u6848\uff1a<\/p>\n<pre>select *, (select group_concat(tag) from tag where user_id = user.id and tag = '\u6d3b\u6cfc') as tags\nfrom user\nwhere exists(select 1 from tag where user_id = user.id and tag = '\u6d3b\u6cfc' limit 1)\nlimit 0, 10;<\/pre>\n<p>\u6b64\u67e5\u8be2\u901a\u8fc7\u4f7f\u7528\u5b50\u67e5\u8be2\u548cexists\u5173\u952e\u5b57\uff0c\u9ad8\u6548\u5730\u7b5b\u9009\u7b26\u5408\u6761\u4ef6\u7684\u4e3b\u4f53\uff0c\u5e76\u540c\u65f6\u83b7\u53d6\u7b26\u5408\u6761\u4ef6\u7684\u6807\u7b7e\u3002 <\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300a\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\uff1a\u5982\u4f55\u9ad8\u6548\u7b5b\u9009\u591a\u4e00\u4fa7\u6761\u4ef6\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6570\u636e\u5e93\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\uff1a\u5982\u4f55\u9ad8\u6548&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200798","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200798","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200798"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200798\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}