{"id":2666,"date":"2025-03-12T23:38:34","date_gmt":"2025-03-12T15:38:34","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=2666"},"modified":"2025-03-12T23:38:34","modified_gmt":"2025-03-12T15:38:34","slug":"postgresql-%e8%a7%a6%e5%8f%91%e5%99%a8%ef%bc%88trigger%ef%bc%89%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/12\/postgresql-%e8%a7%a6%e5%8f%91%e5%99%a8%ef%bc%88trigger%ef%bc%89%e8%af%a6%e8%a7%a3\/","title":{"rendered":"PostgreSQL \u89e6\u53d1\u5668\uff08Trigger\uff09\u8be6\u89e3"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>1. \u4ec0\u4e48\u662f\u89e6\u53d1\u5668\uff1f<\/strong><\/h2>\n\n\n\n<p><strong>\u89e6\u53d1\u5668\uff08Trigger\uff09<\/strong> \u662f PostgreSQL \u4e2d\u7684\u4e00\u79cd <strong>\u81ea\u52a8\u6267\u884c<\/strong> \u7684\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5f53 <strong>\u8868\u4e0a\u7684\u67d0\u4e9b\u4e8b\u4ef6\u53d1\u751f\u65f6\uff08\u5982 INSERT\u3001UPDATE\u3001DELETE\uff09<\/strong>\uff0c\u89e6\u53d1\u5668\u4f1a\u81ea\u52a8\u6267\u884c <strong>\u5b9a\u4e49\u597d\u7684\u89e6\u53d1\u5668\u51fd\u6570<\/strong>\u3002<\/p>\n\n\n\n<p><strong>\u5e38\u89c1\u7528\u9014\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u81ea\u52a8\u5ba1\u8ba1\uff08\u8bb0\u5f55\u6570\u636e\u53d8\u66f4\uff09<\/li>\n\n\n\n<li>\u5f3a\u5236\u4e1a\u52a1\u903b\u8f91\u7ea6\u675f<\/li>\n\n\n\n<li>\u89e6\u53d1\u7ea7\u8054\u64cd\u4f5c<\/li>\n\n\n\n<li>\u5b9e\u73b0\u590d\u6742\u7684\u9a8c\u8bc1\u89c4\u5219<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. \u89e6\u53d1\u5668\u7684\u57fa\u672c\u8bed\u6cd5<\/strong><\/h2>\n\n\n\n<p>PostgreSQL \u89e6\u53d1\u5668\u7531\u4e24\u90e8\u5206\u7ec4\u6210\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u89e6\u53d1\u5668\u51fd\u6570\uff08Trigger Function\uff09<\/strong>\uff1a\u5b9a\u4e49\u89e6\u53d1\u65f6\u8981\u6267\u884c\u7684\u903b\u8f91\u3002<\/li>\n\n\n\n<li><strong>\u89e6\u53d1\u5668\uff08Trigger\uff09<\/strong>\uff1a\u5b9a\u4e49\u89e6\u53d1\u7684\u4e8b\u4ef6\u548c\u4f5c\u7528\u8303\u56f4\u3002<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u521b\u5efa\u89e6\u53d1\u5668\u51fd\u6570<\/strong><\/h3>\n\n\n\n<p>\u89e6\u53d1\u5668\u51fd\u6570\u7684 <strong>\u8fd4\u56de\u7c7b\u578b\u5fc5\u987b\u662f <code>TRIGGER<\/code><\/strong>\uff0c\u4e14\u5fc5\u987b\u7528 <code>RETURN NEW;<\/code> \u6216 <code>RETURN OLD;<\/code> \u7ed3\u675f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE OR REPLACE FUNCTION trigger_function_name()\nRETURNS TRIGGER AS $$\nBEGIN\n    -- \u89e6\u53d1\u5668\u6267\u884c\u7684\u903b\u8f91\n    RETURN NEW;  -- INSERT \u6216 UPDATE \u9700\u8981\u8fd4\u56de NEW\uff0cDELETE \u9700\u8981\u8fd4\u56de OLD\nEND;\n$$ LANGUAGE plpgsql;<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u521b\u5efa\u89e6\u53d1\u5668<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE TRIGGER trigger_name\n{ BEFORE | AFTER | INSTEAD OF } { INSERT | UPDATE | DELETE }\nON table_name\n&#91; FOR EACH { ROW | STATEMENT } ]\nEXECUTE FUNCTION trigger_function_name();<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3. \u89e6\u53d1\u5668\u7684\u7c7b\u578b<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6839\u636e\u6267\u884c\u65f6\u673a\u5206\u7c7b<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u89e6\u53d1\u5668\u7c7b\u578b<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td><code>BEFORE<\/code><\/td><td>\u5728\u6570\u636e\u64cd\u4f5c\uff08INSERT\/UPDATE\/DELETE\uff09\u53d1\u751f<strong>\u4e4b\u524d<\/strong>\u89e6\u53d1<\/td><\/tr><tr><td><code>AFTER<\/code><\/td><td>\u5728\u6570\u636e\u64cd\u4f5c\u53d1\u751f<strong>\u4e4b\u540e<\/strong>\u89e6\u53d1<\/td><\/tr><tr><td><code>INSTEAD OF<\/code><\/td><td>\u7528\u4e8e <strong>\u89c6\u56fe\uff08VIEW\uff09<\/strong>\uff0c\u66ff\u4ee3 INSERT\/UPDATE\/DELETE<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u6839\u636e\u89e6\u53d1\u7c92\u5ea6\u5206\u7c7b<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u89e6\u53d1\u5668\u7c7b\u578b<\/th><th>\u8bf4\u660e<\/th><\/tr><\/thead><tbody><tr><td><code>FOR EACH ROW<\/code><\/td><td>\u9488\u5bf9 <strong>\u6bcf\u4e00\u884c<\/strong> \u6570\u636e\u6267\u884c\u89e6\u53d1\u5668\u903b\u8f91<\/td><\/tr><tr><td><code>FOR EACH STATEMENT<\/code><\/td><td>\u53ea\u6267\u884c <strong>\u4e00\u6b21<\/strong>\uff0c\u65e0\u8bba\u53d7\u5f71\u54cd\u7684\u884c\u6570\u662f\u591a\u5c11<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4. \u89e6\u53d1\u5668\u793a\u4f8b<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4.1 \u63d2\u5165\u524d\u89e6\u53d1\uff08BEFORE INSERT\uff09<\/strong><\/h3>\n\n\n\n<p><strong>\u9700\u6c42\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728 <code>employees<\/code> \u8868\u63d2\u5165\u6570\u636e\u65f6\uff0c\u81ea\u52a8\u5927\u5199 <code>first_name<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE TABLE employees (\n    emp_id SERIAL PRIMARY KEY,\n    first_name VARCHAR(50),\n    last_name VARCHAR(50),\n    salary DECIMAL(10,2)\n);<\/code><\/pre>\n\n\n\n<p><strong>\u521b\u5efa\u89e6\u53d1\u5668\u51fd\u6570<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE OR REPLACE FUNCTION uppercase_first_name()\nRETURNS TRIGGER AS $$\nBEGIN\n    NEW.first_name := UPPER(NEW.first_name);\n    RETURN NEW;\nEND;\n$$ LANGUAGE plpgsql;<\/code><\/pre>\n\n\n\n<p><strong>\u521b\u5efa\u89e6\u53d1\u5668<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE TRIGGER before_insert_employee\nBEFORE INSERT ON employees\nFOR EACH ROW\nEXECUTE FUNCTION uppercase_first_name();<\/code><\/pre>\n\n\n\n<p><strong>\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>INSERT INTO employees (first_name, last_name, salary) \nVALUES ('alice', 'Smith', 5000);\nSELECT * FROM employees;<\/code><\/pre>\n\n\n\n<p><strong>\u7ed3\u679c<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>emp_id<\/th><th>first_name<\/th><th>last_name<\/th><th>salary<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td>ALICE<\/td><td>Smith<\/td><td>5000<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4.2 \u66f4\u65b0\u540e\u89e6\u53d1\uff08AFTER UPDATE\uff09<\/strong><\/h3>\n\n\n\n<p><strong>\u9700\u6c42<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u5f53 <code>employees<\/code> \u8868\u7684 <code>salary<\/code> \u53d1\u751f\u53d8\u66f4\u65f6\uff0c\u81ea\u52a8\u8bb0\u5f55\u53d8\u66f4\u4fe1\u606f\u5230 <code>salary_changes<\/code> \u8868\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE TABLE salary_changes (\n    change_id SERIAL PRIMARY KEY,\n    emp_id INT,\n    old_salary DECIMAL(10,2),\n    new_salary DECIMAL(10,2),\n    change_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP\n);<\/code><\/pre>\n\n\n\n<p><strong>\u521b\u5efa\u89e6\u53d1\u5668\u51fd\u6570<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE OR REPLACE FUNCTION log_salary_changes()\nRETURNS TRIGGER AS $$\nBEGIN\n    INSERT INTO salary_changes (emp_id, old_salary, new_salary)\n    VALUES (OLD.emp_id, OLD.salary, NEW.salary);\n    RETURN NEW;\nEND;\n$$ LANGUAGE plpgsql;<\/code><\/pre>\n\n\n\n<p><strong>\u521b\u5efa\u89e6\u53d1\u5668<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE TRIGGER after_salary_update\nAFTER UPDATE ON employees\nFOR EACH ROW\nWHEN (OLD.salary IS DISTINCT FROM NEW.salary)  -- \u53ea\u6709 salary \u53d8\u5316\u65f6\u89e6\u53d1\nEXECUTE FUNCTION log_salary_changes();<\/code><\/pre>\n\n\n\n<p><strong>\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>UPDATE employees SET salary = 6000 WHERE emp_id = 1;\nSELECT * FROM salary_changes;<\/code><\/pre>\n\n\n\n<p><strong>\u7ed3\u679c<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>change_id<\/th><th>emp_id<\/th><th>old_salary<\/th><th>new_salary<\/th><th>change_date<\/th><\/tr><\/thead><tbody><tr><td>1<\/td><td>1<\/td><td>5000<\/td><td>6000<\/td><td>2025-03-12 14:00:00<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4.3 \u5220\u9664\u524d\u89e6\u53d1\uff08BEFORE DELETE\uff09<\/strong><\/h3>\n\n\n\n<p><strong>\u9700\u6c42<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u963b\u6b62 <code>employees<\/code> \u8868\u4e2d <code>salary > 10000<\/code> \u7684\u5458\u5de5\u88ab\u5220\u9664\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u521b\u5efa\u89e6\u53d1\u5668\u51fd\u6570<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE OR REPLACE FUNCTION prevent_high_salary_delete()\nRETURNS TRIGGER AS $$\nBEGIN\n    IF OLD.salary &gt; 10000 THEN\n        RAISE EXCEPTION 'Cannot delete employee with high salary!';\n    END IF;\n    RETURN OLD;\nEND;\n$$ LANGUAGE plpgsql;<\/code><\/pre>\n\n\n\n<p><strong>\u521b\u5efa\u89e6\u53d1\u5668<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE TRIGGER before_delete_employee\nBEFORE DELETE ON employees\nFOR EACH ROW\nEXECUTE FUNCTION prevent_high_salary_delete();<\/code><\/pre>\n\n\n\n<p><strong>\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>DELETE FROM employees WHERE salary &gt; 10000;<\/code><\/pre>\n\n\n\n<p><strong>\u9519\u8bef\u63d0\u793a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ERROR:  Cannot delete employee with high salary!<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5. \u5220\u9664\u89e6\u53d1\u5668<\/strong><\/h2>\n\n\n\n<p>\u5982\u679c\u4e0d\u518d\u9700\u8981\u89e6\u53d1\u5668\uff0c\u53ef\u4ee5\u5220\u9664\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>DROP TRIGGER trigger_name ON table_name;<\/code><\/pre>\n\n\n\n<p>\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>DROP TRIGGER before_insert_employee ON employees;<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u8981\u5220\u9664\u89e6\u53d1\u5668\u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>DROP FUNCTION trigger_function_name();<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>6. PostgreSQL \u89e6\u53d1\u5668 vs \u7ea6\u675f<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th>\u89e6\u53d1\u5668\uff08Trigger\uff09<\/th><th>\u7ea6\u675f\uff08Constraint\uff09<\/th><\/tr><\/thead><tbody><tr><td>\u4f5c\u7528\u8303\u56f4<\/td><td>\u590d\u6742\u4e1a\u52a1\u903b\u8f91<\/td><td>\u57fa\u672c\u6570\u636e\u5b8c\u6574\u6027<\/td><\/tr><tr><td>\u6267\u884c\u65f6\u673a<\/td><td>INSERT\/UPDATE\/DELETE \u4e8b\u4ef6<\/td><td>\u4ec5\u5f53\u6570\u636e\u8fdd\u53cd\u89c4\u5219\u65f6<\/td><\/tr><tr><td>\u53ef\u6267\u884c\u64cd\u4f5c<\/td><td>\u8bb0\u5f55\u65e5\u5fd7\u3001\u4fee\u6539\u6570\u636e\u3001\u963b\u6b62\u64cd\u4f5c<\/td><td>\u4ec5\u80fd\u963b\u6b62\u4e0d\u5408\u6cd5\u6570\u636e<\/td><\/tr><tr><td>\u662f\u5426\u652f\u6301\u590d\u6742\u903b\u8f91<\/td><td>\u2705<\/td><td>\u274c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5982\u679c\u53ea\u662f <strong>\u5f3a\u5236\u6570\u636e\u5b8c\u6574\u6027\uff08\u5982\u552f\u4e00\u7ea6\u675f\u3001\u975e\u7a7a\u7ea6\u675f\uff09<\/strong>\uff0c\u63a8\u8350\u4f7f\u7528 <strong>\u7ea6\u675f\uff08Constraint\uff09<\/strong>\uff0c\u4f46\u5982\u679c\u6d89\u53ca <strong>\u5ba1\u8ba1\u3001\u65e5\u5fd7\u8bb0\u5f55\u3001\u81ea\u52a8\u586b\u5145\u7b49\u590d\u6742\u903b\u8f91<\/strong>\uff0c\u5c31\u8981\u7528 <strong>\u89e6\u53d1\u5668\uff08Trigger\uff09<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>7. \u89e6\u53d1\u5668\u7684\u6700\u4f73\u5b9e\u8df5<\/strong><\/h2>\n\n\n\n<p>\u2705 <strong>\u5c3d\u91cf\u4f7f\u7528 BEFORE \u89e6\u53d1\u5668<\/strong>\uff1a\u53ef\u4ee5\u51cf\u5c11 SQL \u6267\u884c\u65f6\u95f4\uff0c\u56e0\u4e3a <code>BEFORE<\/code> \u89e6\u53d1\u5668\u53ef\u4ee5\u5728\u6570\u636e\u5199\u5165\u4e4b\u524d\u8c03\u6574\u6570\u636e\uff0c\u51cf\u5c11\u4e8b\u52a1\u56de\u6eda\u7684\u5f00\u9500\u3002<br>\u2705 <strong>\u907f\u514d\u4f7f\u7528 FOR EACH ROW \u89e6\u53d1\u5668\u5904\u7406\u5927\u6570\u636e\u91cf<\/strong>\uff1a\u5f53\u8868\u6570\u636e\u91cf\u8f83\u5927\u65f6\uff0c\u5efa\u8bae\u4f7f\u7528 <code>FOR EACH STATEMENT<\/code> \u89e6\u53d1\u5668\uff0c\u51cf\u5c11\u6027\u80fd\u5f00\u9500\u3002<br>\u2705 <strong>\u8c28\u614e\u4fee\u6539\u6216\u5220\u9664\u89e6\u53d1\u5668<\/strong>\uff1a\u89e6\u53d1\u5668\u53ef\u80fd\u5f71\u54cd\u6570\u636e\u5b8c\u6574\u6027\uff0c\u4fee\u6539\u6216\u5220\u9664\u524d\u5e94\u4ed4\u7ec6\u8bc4\u4f30\u3002<br>\u2705 <strong>\u914d\u5408\u65e5\u5fd7\u8868\u8bb0\u5f55\u53d8\u66f4<\/strong>\uff1a\u5bf9\u4e8e\u5ba1\u8ba1\u65e5\u5fd7\uff0c\u63a8\u8350 <code>AFTER INSERT<\/code> \u6216 <code>AFTER UPDATE<\/code> \u89e6\u53d1\u5668\u8bb0\u5f55\u6570\u636e\u53d8\u66f4\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. \u4ec0\u4e48\u662f\u89e6\u53d1\u5668\uff1f \u89e6\u53d1\u5668\uff08Trigger\uff09 \u662f PostgreSQL \u4e2d\u7684\u4e00\u79cd \u81ea\u52a8\u6267\u884c \u7684\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5f53 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2668,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[78],"tags":[],"class_list":["post-2666","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-postgresql"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=2666"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2666\/revisions"}],"predecessor-version":[{"id":2669,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2666\/revisions\/2669"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/2668"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=2666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=2666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=2666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}