{"id":25563,"date":"2024-11-24T13:11:25","date_gmt":"2024-11-24T05:11:25","guid":{"rendered":"https:\/\/fwq.ai\/blog\/25563\/"},"modified":"2024-11-24T13:11:25","modified_gmt":"2024-11-24T05:11:25","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%8c%e5%a6%82%e4%bd%95%e5%90%8c%e6%97%b6%e6%bb%a1%e8%b6%b3%e5%ad%90%e8%a1%a8%e6%95%b0%e6%8d%ae-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/25563\/","title":{"rendered":"\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\uff0c\u5982\u4f55\u540c\u65f6\u6ee1\u8db3\u5b50\u8868\u6570\u636e\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173063272516178.jpg\" class=\"aligncenter\" title=\"\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\uff0c\u5982\u4f55\u540c\u65f6\u6ee1\u8db3\u5b50\u8868\u6570\u636e\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\uff1f\u63d2\u56fe\" alt=\"\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\uff0c\u5982\u4f55\u540c\u65f6\u6ee1\u8db3\u5b50\u8868\u6570\u636e\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\u4e0e\u591a\u7aef\u67e5\u8be2\u6761\u4ef6<\/strong><\/p>\n<p>\u5728\u4e1a\u52a1\u7cfb\u7edf\u4e2d\uff0c\u4e00\u5bf9\u591a\u5173\u7cfb\u5e38\u89c1\u7684\u60c5\u51b5\u662f\uff0c\u67d0\u4e2a\u5b9e\u4f53\u6709\u591a\u4e2a\u5173\u8054\u5b9e\u4f53\uff0c\u4e14\u9700\u8981\u5bf9\u4e3b\u8868\u8fdb\u884c\u5206\u9875\u67e5\u8be2\u7684\u540c\u65f6\uff0c\u5b50\u8868\u6570\u636e\u53ef\u4ee5\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\u3002<\/p>\n<p>\u9488\u5bf9\u60a8\u63d0\u51fa\u7684\u95ee\u9898\uff0c\u73b0\u6709\u7684\u4e24\u79cd\u8bbe\u8ba1\u65b9\u6848\u5b58\u5728\u4e0d\u8db3\uff1a<\/p>\n<ul>\n<li> <strong>\u65b9\u6848\u4e00\uff1a<\/strong>\u5728\u6ee1\u8db3\u5206\u9875\u8981\u6c42\u7684\u540c\u65f6\uff0c\u5374\u65e0\u6cd5\u6ee1\u8db3\u5b50\u8868\u6570\u636e\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\u7684\u8bc9\u6c42\u3002<\/li>\n<li> <strong>\u65b9\u6848\u4e8c\uff1a<\/strong>\u901a\u8fc7\u5c06\u5b50\u8868\u6570\u636e\u5b58\u50a8\u5728\u4e3b\u8868\u4e2d\uff0c\u6ee1\u8db3\u4e86\u67e5\u8be2\u6761\u4ef6\u7684\u8981\u6c42\uff0c\u4f46\u8fdd\u53cd\u6570\u636e\u5e93\u8bbe\u8ba1\u8303\u5f0f\uff0c\u5f71\u54cd\u6570\u636e\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u91cc\u63d0\u4f9b\u4e00\u79cd\u4f18\u5316\u540e\u7684\u8bbe\u8ba1\u601d\u8def\uff1a<\/p>\n<p><strong>\u4f18\u5316\u65b9\u6848\uff1a<\/strong><\/p>\n<p>\u5728\u539f\u6709\u4e24\u5f20\u8868\uff08user\u548ctag\uff09\u7684\u57fa\u7840\u4e0a\uff0c\u65b0\u589e\u4e00\u5f20<strong>\u5173\u8054\u8868<\/strong>\uff08\u5173\u8054\u8868\u91c7\u7528\u201cuser_id\u201d\u548c\u201ctag\u201d\u7ec4\u5408\u4f5c\u4e3a\u4e3b\u952e\uff09\uff1a<\/p>\n<pre>user\u8868\uff1a\n| a_id | name |\n|---|---|\n| 1    | \u5c0f\u660e |\n| 2    | \u5c0f\u674e |\n| 3    | \u5c0f\u5f20 |\n\ntag\u8868\uff1a\n| id | tag |\n|---|---|\n| 1    | \u6d3b\u6cfc |\n| 2    | \u53ef\u7231 |\n\n\u5173\u8054\u8868\uff1a\n| user_id | tag |\n|---|---|\n| 1    | \u6d3b\u6cfc |\n| 1    | \u53ef\u7231 |\n| 2    | \u6d3b\u6cfc |\n| 3    | \u53ef\u7231 |<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4f7f\u7528\u5173\u8054\u8868\u8bbe\u8ba1\u7684\u597d\u5904\u5728\u4e8e\uff1a<\/p>\n<ul>\n<li>\u6ee1\u8db3\u5206\u9875\u67e5\u8be2\u9700\u6c42\uff0c\u5728user\u8868\u4e2d\u8fdb\u884c\u5206\u9875\u67e5\u8be2\u3002<\/li>\n<li>\u6ee1\u8db3\u5b50\u8868\u6570\u636e\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\u7684\u9700\u6c42\uff0c\u901a\u8fc7\u5728\u5173\u8054\u8868\u4e2d\u52a0\u5165\u67e5\u8be2\u6761\u4ef6\uff0c\u53ef\u4ee5\u67e5\u8be2\u51fa\u6307\u5b9a\u5b50\u8868\u6570\u636e\u7684\u7236\u8868\u8bb0\u5f55\u3002<\/li>\n<li>\u4fdd\u8bc1\u6570\u636e\u5b8c\u6574\u6027\uff0c\u5173\u8054\u8868\u907f\u514d\u4e86\u4e3b\u8868\u4e2d\u6570\u636e\u5197\u4f59\uff0c\u4fdd\u6301\u4e86\u7b2c\u4e00\u8303\u5f0f\u3002<\/li>\n<\/ul>\n<p><strong>\u67e5\u8be2sql\uff1a<\/strong><\/p>\n<pre>SELECT\n    u.*,\n    GROUP_CONCAT(t.tag) AS tags\nFROM\n    user AS u\nLEFT JOIN\n    \u5173\u8054\u8868 AS r ON u.a_id = r.user_id\nLEFT JOIN\n    tag AS t ON r.tag = t.id\nWHERE\n    r.tag = '\u6d3b\u6cfc'\n    \/* \u5176\u4ed6\u67e5\u8be2\u6761\u4ef6 *\/\nGROUP BY\n    u.a_id,\n    u.name\nLIMIT\n    #{current}, #{size}  -- \u5206\u9875\u53c2\u6570<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u4f7f\u7528\u8bf4\u660e\uff1a<\/strong><\/p>\n<p>\u901a\u8fc7\u5728\u5173\u8054\u8868\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u67e5\u8be2\u6761\u4ef6\uff0c\u53ef\u4ee5\u5b9e\u73b0\u591a\u7aef\u7684\u67e5\u8be2\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u8981\u67e5\u8be2\u201cname\u201d\u5b57\u6bb5\u4e2d\u5305\u542b\u201c\u53ef\u7231\u201d\u7684\u201cuser\u201d\u8bb0\u5f55\uff0c\u53ef\u4ee5\u5728where\u5b50\u53e5\u4e2d\u6dfb\u52a0\u6761\u4ef6\uff1a\u201cr.tag = &#8216;\u53ef\u7231&#8217;\u201d\u3002<\/p>\n<p>\u8fd9\u6837\u65e2\u6ee1\u8db3\u4e86\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\u7684\u9700\u6c42\uff0c\u53c8\u53ef\u4ee5\u5c06\u591a\u7aef\u7684\u5b50\u8868\u6570\u636e\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\u4f7f\u7528\uff0c\u540c\u65f6\u4fdd\u8bc1\u4e86\u6570\u636e\u5b8c\u6574\u6027\u548c\u6027\u80fd\u4f18\u5316\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\uff0c\u5982\u4f55\u540c\u65f6\u6ee1\u8db3\u5b50\u8868\u6570\u636e\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\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>\u4e00\u5bf9\u591a\u4e1a\u52a1\u5173\u7cfb\u5206\u9875\u67e5\u8be2\u4e0e\u591a\u7aef\u67e5\u8be2\u6761\u4ef6 \u5728\u4e1a\u52a1\u7cfb\u7edf\u4e2d\uff0c\u4e00\u5bf9\u591a\u5173\u7cfb\u5e38\u89c1\u7684\u60c5\u51b5\u662f\uff0c\u67d0\u4e2a\u5b9e\u4f53\u6709\u591a\u4e2a\u5173\u8054\u5b9e\u4f53\uff0c\u4e14\u9700\u8981\u5bf9\u4e3b\u8868\u8fdb\u884c\u5206\u9875\u67e5\u8be2\u7684\u540c\u65f6\uff0c\u5b50\u8868\u6570\u636e\u53ef\u4ee5\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\u3002 \u9488\u5bf9\u60a8\u63d0\u51fa\u7684\u95ee\u9898\uff0c\u73b0\u6709\u7684\u4e24\u79cd\u8bbe\u8ba1\u65b9\u6848\u5b58\u5728\u4e0d\u8db3\uff1a \u65b9\u6848\u4e00\uff1a\u5728\u6ee1\u8db3\u5206\u9875\u8981\u6c42\u7684\u540c\u65f6\uff0c\u5374\u65e0\u6cd5\u6ee1\u8db3\u5b50\u8868\u6570\u636e\u4f5c\u4e3a\u67e5\u8be2\u6761\u4ef6\u7684\u8bc9\u6c42\u3002 \u65b9\u6848\u4e8c\uff1a\u901a\u8fc7\u5c06\u5b50\u8868\u6570\u636e\u5b58\u50a8\u5728\u4e3b\u8868\u4e2d\uff0c\u6ee1\u8db3\u4e86\u67e5\u8be2\u6761\u4ef6\u7684\u8981\u6c42\uff0c\u4f46\u8fdd\u53cd\u6570\u636e\u5e93\u8bbe\u8ba1\u8303\u5f0f\uff0c\u5f71\u54cd\u6570\u636e\u67e5\u8be2\u6027\u80fd\u3002 \u8fd9\u91cc\u63d0\u4f9b\u4e00\u79cd\u4f18\u5316\u540e\u7684\u8bbe\u8ba1\u601d\u8def\uff1a \u4f18\u5316\u65b9\u6848\uff1a \u5728\u539f\u6709\u4e24\u5f20\u8868\uff08user\u548ctag\uff09\u7684\u57fa\u7840\u4e0a\uff0c\u65b0\u589e\u4e00\u5f20\u5173\u8054\u8868\uff08\u5173\u8054\u8868\u91c7\u7528\u201cuser_id\u201d\u548c\u201ctag\u201d\u7ec4\u5408\u4f5c\u4e3a\u4e3b\u952e\uff09\uff1a user\u8868\uff1a | a_id | name | |&#8212;|&#8212;| | 1 | \u5c0f\u660e | | 2 | \u5c0f\u674e | | 3 | \u5c0f\u5f20 | tag\u8868\uff1a | id | tag | |&#8212;|&#8212;| | 1 | \u6d3b\u6cfc | | 2 | \u53ef\u7231 | \u5173\u8054\u8868\uff1a | user_id | tag | |&#8212;|&#8212;| | [&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-25563","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25563","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=25563"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/25563\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=25563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=25563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=25563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}