{"id":2280,"date":"2026-05-26T08:05:43","date_gmt":"2026-05-26T08:05:43","guid":{"rendered":"https:\/\/www.vpascode.com\/tw\/docs\/uncategorized\/mermaid-js-class-diagram-syntax-guide\/"},"modified":"2026-05-26T08:05:43","modified_gmt":"2026-05-26T08:05:43","slug":"mermaid-js-class-diagram-syntax-guide","status":"publish","type":"ld_docs","link":"https:\/\/www.vpascode.com\/tw\/docs\/vpascode-docs\/mermaid-js-class-diagram-syntax-guide\/","title":{"rendered":"Mermaid.js \u985e\u5716\u8a9e\u6cd5\u6307\u5357"},"content":{"rendered":"<h2>\u4ec0\u9ebc\u662f\u985e\u5716\uff1f<\/h2>\n<p>\u4e00\u500b<strong>\u985e\u5716<\/strong>\u662f\u4e00\u7a2e\u7d50\u69cb\u6027<strong>UML\u5716<\/strong>\uff0c\u7528\u65bc\u5448\u73fe\u7269\u4ef6\u5c0e\u5411\u8edf\u9ad4\u7cfb\u7d71\u7684\u975c\u614b\u67b6\u69cb\u3002\u4f5c\u70ba\u4e0d\u53ef\u6216\u7f3a\u7684<strong>UML\u5716\u985e\u578b<\/strong>\uff0c\u5b83\u6703\u5728\u60a8\u7684\u61c9\u7528\u7a0b\u5f0f\u4e2d\u6a19\u793a\u51fa\u500b\u5225\u7684\u985e\u5225\u3001\u4ecb\u9762\u8207\u8cc7\u6599\u6a21\u578b\uff0c\u660e\u78ba\u8a18\u9304\u5176\u5167\u90e8\u6b04\u4f4d\uff08\u5c6c\u6027\uff09\u3001\u64cd\u4f5c\u529f\u80fd\uff08\u65b9\u6cd5\uff09\uff0c\u4ee5\u53ca\u5c07\u5b83\u5011\u9023\u7d50\u5728\u4e00\u8d77\u7684\u7d50\u69cb\u95dc\u4fc2\u3002\u6b64\u85cd\u5716\u5c0d\u8edf\u9ad4\u5de5\u7a0b\u5e2b\u81f3\u95dc\u91cd\u8981\uff0c\u56e0\u70ba\u4ed6\u5011\u9700\u8981\u5c07\u9ad8\u968e\u9818\u57df\u8a2d\u8a08\u8f49\u63db\u70ba\u6e05\u6670\u4e14\u53ef\u7dad\u8b77\u7684\u7269\u4ef6\u7d50\u69cb\u3002<\/p>\n<p>\u4f7f\u7528<strong>Mermaid.js<\/strong>\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u76f4\u89ba\u7684\u7d14\u6587\u5b57\u5b9a\u7fa9\u4f86\u52fe\u52d2\u51fa\u60a8\u7684\u8cc7\u6599\u6a21\u578b\u8207\u7cfb\u7d71\u670d\u52d9\u3002\u4f48\u5c40\u5f15\u64ce\u6703\u81ea\u52d5\u8a08\u7b97\u65b9\u6846\u5927\u5c0f\uff0c\u5efa\u7acb\u6a19\u6e96\u7684UML\u8cc7\u6599\u5340\u584a\uff0c\u4e26\u5728\u60a8\u7684\u756b\u5e03\u4e0a\u81ea\u52d5\u5c0d\u9f4a\u95dc\u806f\u7bad\u982d\uff0c\u7121\u9700\u4efb\u4f55\u624b\u52d5\u683c\u5f0f\u8a2d\u5b9a\u7684\u8ca0\u64d4\u3002<\/p>\n<h2>\u6838\u5fc3\u8a9e\u6cd5\u6307\u5357\uff1a\u5143\u7d20\u8207\u69cb\u9020<\/h2>\n<p>\u8981\u5728 Mermaid \u4e2d\u8a2d\u8a08\u51fa\u6e96\u78ba\u4e14\u7b26\u5408\u6a19\u6e96\u7684 UML \u985e\u5716\uff0c\u60a8\u5fc5\u9808\u638c\u63e1\u6210\u54e1\u5ba3\u544a\u3001\u5b58\u53d6\u4fee\u98fe\u7b26\u4ee5\u53ca\u7d50\u69cb\u95dc\u4fc2\u7bad\u982d\u3002<\/p>\n<h3>1. \u5ba3\u544a\u985e\u5225\u8207\u985e\u5225\u5340\u584a<\/h3>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u5169\u7a2e\u6709\u6548\u7684\u683c\u5f0f\u4f86\u5b9a\u7fa9\u985e\u5225\u3002\u5c0d\u65bc\u7c21\u55ae\u7684\u985e\u5225\uff0c\u8acb\u4f7f\u7528<code>class<\/code>\u95dc\u9375\u5b57\uff0c\u5f8c\u9762\u63a5\u4e0a\u985e\u5225\u540d\u7a31\u3002\u5982\u679c\u60a8\u5e0c\u671b\u7acb\u5373\u5305\u542b\u6b04\u4f4d\u8207\u65b9\u6cd5\uff0c\u8acb\u4f7f\u7528\u5c3e\u96a8\u7684\u5927\u62ec\u865f\u4f86\u5efa\u7acb\u660e\u78ba\u7684\u5167\u5bb9\u5340\u584a\uff1a<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAgmSQiEJocWpRQFF+WmZOqkI1RAIEtINLijLz0hVKgdJ5ibmpmDKpuYmZOUjCpQUpiSWpriBRjbzUcjBDU6EsPzMFoqgWAOaDJdQ=\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAgmSQiEJocWpRQFF+WmZOqkI1RAIEtINLijLz0hVKgdJ5ibmpmDKpuYmZOUjCpQUpiSWpriBRjbzUcjBDU6EsPzMFoqgWAOaDJdQ=\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">classDiagram\r\n    class UserProfile {\r\n        +String username\r\n        +String email\r\n        +updateEmail(newEmail) void\r\n    }<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAgmSQiEJocWpRQFF+WmZOqkI1RAIEtINLijLz0hVKgdJ5ibmpmDKpuYmZOUjCpQUpiSWpriBRjbzUcjBDU6EsPzMFoqgWAOaDJdQ=\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAgmSQiEJocWpRQFF+WmZOqkI1RAIEtINLijLz0hVKgdJ5ibmpmDKpuYmZOUjCpQUpiSWpriBRjbzUcjBDU6EsPzMFoqgWAOaDJdQ=\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p id=\"QKYoRec\"><img fetchpriority=\"high\" alt=\"\" class=\"alignnone size-full wp-image-618\" decoding=\"async\" fetchpriority=\"high\" height=\"184\" sizes=\"(max-width: 303px) 100vw, 303px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a19030c532c9.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a19030c532c9.png 303w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a19030c532c9-300x182.png 300w\" width=\"303\"\/><\/p>\n<h3>2. \u52a0\u5165\u53ef\u898b\u6027\uff0f\u5b58\u53d6\u4fee\u98fe\u7b26<\/h3>\n<p>\u70ba\u4e86\u8a18\u9304\u6a19\u6e96\u7684 UML \u5c01\u88dd\u898f\u5247\uff0c\u8acb\u5728\u5c6c\u6027\u6216\u65b9\u6cd5\u540d\u7a31\u524d\u76f4\u63a5\u653e\u7f6e\u7279\u5b9a\u7b26\u865f\uff0c\u4ee5\u5b9a\u7fa9\u5176\u53ef\u898b\u6027\u5c64\u7d1a\uff1a<\/p>\n<ul>\n<li><code>+<\/code> **\u516c\u958b\uff1a** \u53ef\u5f9e\u4efb\u4f55\u5176\u4ed6\u985e\u5225\u5b58\u53d6\u3002<\/li>\n<li><code>-<\/code> **\u79c1\u6709\uff1a** \u50c5\u53ef\u5728\u5ba3\u544a\u985e\u5225\u5167\u5b58\u53d6\u3002<\/li>\n<li><code>#<\/code> **\u4fdd\u8b77\uff1a** \u53ef\u5728\u985e\u5225\u53ca\u5176\u5b50\u985e\u5225\u4e2d\u5b58\u53d6\u3002<\/li>\n<li><code>~<\/code> **\u5957\u4ef6 \/ \u5167\u90e8\uff1a** \u53ef\u5728\u76f8\u540c\u5957\u4ef6\u908a\u754c\u5167\u5b58\u53d6\u3002<\/li>\n<\/ul>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAgmSQiIJTYl62Y3JyfmleiUI1RAIEdFPyS5NyUhWSEnMS85JTERLKwSVFmXnpCokQPR75OSmpRQhp7fTUEieIHg1NBYghENlaANmyJWY=\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAgmSQiIJTYl62Y3JyfmleiUI1RAIEdFPyS5NyUhWSEnMS85JTERLKwSVFmXnpCokQPR75OSmpRQhp7fTUEieIHg1NBYghENlaANmyJWY=\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">classDiagram\r\n    class BankAccount {\r\n        -double balance\r\n        #String accountHolder\r\n        +getBalance() double\r\n    }<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAgmSQiIJTYl62Y3JyfmleiUI1RAIEdFPyS5NyUhWSEnMS85JTERLKwSVFmXnpCokQPR75OSmpRQhp7fTUEieIHg1NBYghENlaANmyJWY=\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAgmSQiIJTYl62Y3JyfmleiUI1RAIEdFPyS5NyUhWSEnMS85JTERLKwSVFmXnpCokQPR75OSmpRQhp7fTUEieIHg1NBYghENlaANmyJWY=\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p id=\"XgBkvsQ\"><img alt=\"\" class=\"alignnone size-full wp-image-619\" decoding=\"async\" height=\"184\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903106882d.png\" width=\"249\"\/><\/p>\n<h3>3. \u638c\u63e1\u95dc\u4fc2\u7bad\u982d\u8207\u7e7c\u627f\u9023\u7d50<\/h3>\n<p>\u70ba\u4e86\u986f\u793a\u985e\u5225\u5728\u60a8\u7684 UML \u5716\u8868\u6a21\u578b\u4e2d\u5982\u4f55\u4e92\u52d5\uff0c\u8acb\u4f7f\u7528\u5c08\u7528\u7684\u95dc\u4fc2\u5b57\u4e32\u9023\u63a5\u5b83\u5011\u7684 ID\u3002\u5728 Mermaid \u4e2d\uff0c\u7dda\u7684\u65b9\u5411\u5f88\u91cd\u8981\uff1a\u7bad\u982d\u982d\u90e8\u6307\u5411\u7236\u985e\u5225\u6216\u5bb9\u5668\u985e\u5225\u3002<\/p>\n<ul>\n<li><strong>\u7e7c\u627f \/ \u4e00\u822c\u5316\uff08\u865b\u7dda\u6216\u5be6\u7dda\u7bad\u982d\uff09\uff1a<\/strong> <code>Child --|&gt; Parent<\/code>\uff08\u4ee3\u8868\u300c\u662f\u300d\u95dc\u4fc2\uff09\u3002<\/li>\n<li><strong>\u5be6\u73fe \/ \u5be6\u4f5c\uff1a<\/strong> <code>Class ..|&gt; Interface<\/code>\uff08\u4ee3\u8868\u985e\u5225\u5c65\u884c\u4ecb\u9762\u5408\u7d04\uff09\u3002<\/li>\n<li><strong>\u7d44\u5408\uff08\u5be6\u5fc3\u83f1\u5f62\uff09\uff1a<\/strong> <code>Child --* Parent<\/code>\uff08\u4ee3\u8868\u56b4\u683c\u7684\u6240\u6709\u6b0a\uff1b\u5982\u679c\u7236\u985e\u5225\u6b7b\u4ea1\uff0c\u5b50\u985e\u5225\u4e5f\u6703\u6b7b\u4ea1\uff09\u3002<\/li>\n<li><strong>\u805a\u5408\uff08\u7a7a\u5fc3\u83f1\u5f62\uff09\uff1a<\/strong> <code>Child --o Parent<\/code>\uff08\u4ee3\u8868\u9b06\u6563\u7684\u96c6\u5408\u95dc\u4fc2\uff1b\u5b50\u985e\u5225\u53ef\u4ee5\u7368\u7acb\u5b58\u5728\uff09\u3002<\/li>\n<li><strong>\u4f9d\u8cf4\uff1a<\/strong> <code>ClassA ..&gt; ClassB<\/code>\uff08\u4ee3\u8868\u66ab\u6642\u7684\u57f7\u884c\u6642\u53c3\u8003\uff09\u3002<\/li>\n<\/ul>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAAufEIgVd3Ro7hbDUjMzknFQFKwUlz7yM1KLMkmKFtKL8XCWIOte89My8VKBSLbAWkKpihYLEohKF\/DQlAHyeGXI=\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAAufEIgVd3Ro7hbDUjMzknFQFKwWl5zv3POvc\/6J9lRJEjWteemZeKlCZFlg5UMWzGeuftm57smPtkx0NL5tXPO1oUwIAtAgkLA==\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">classDiagram\r\n    Car --|&gt; Vehicle : \"\u7e7c\u627f\u81ea\"\r\n    Engine --* Car : \"\u662f\u5176\u4e2d\u4e00\u90e8\u5206\"<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAAufEIgVd3Ro7hbDUjMzknFQFKwWl5zv3POvc\/6J9lRJEjWteemZeKlCZFlg5UMWzGeuftm57smPtkx0NL5tXPO1oUwIAtAgkLA==\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLzkksLnbJTEwvSszl5VIAAufEIgVd3Ro7hbDUjMzknFQFKwUlz7yM1KLMkmKFtKL8XCWIOte89My8VKBSLbAWkKpihYLEohKF\/DQlAHyeGXI=\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p id=\"wCxJKDf\"><img alt=\"\" class=\"alignnone size-full wp-image-620\" decoding=\"async\" height=\"416\" sizes=\"(max-width: 123px) 100vw, 123px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903163fbcf.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903163fbcf.png 123w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903163fbcf-89x300.png 89w\" width=\"123\"\/><\/p>\n<h2>\u5efa\u7acb\u4e7e\u6de8\u985e\u5225\u67b6\u69cb\u4f48\u5c40\u7684\u6700\u4f73\u5be6\u52d9<\/h2>\n<ul>\n<li><strong>\u8996\u89ba\u5316\u5206\u7d44\u985e\u5225\u6210\u54e1\uff1a<\/strong> \u59cb\u7d42\u5c07\u985e\u5225\u8b8a\u6578\u7fa4\u7d44\u5728\u4e3b\u9ad4\u5340\u584a\u7684\u9802\u90e8\uff0c\u800c\u5c07\u51fd\u6578\u7fa4\u7d44\u5728\u5e95\u90e8\u3002\u6b64\u4f48\u5c40\u7b26\u5408\u6a19\u6e96 IDE \u985e\u5225\u7d50\u69cb\uff0c\u4f7f\u60a8\u7684\u5716\u8868\u7acb\u5373\u53ef\u8b80\u3002<\/li>\n<li><strong>\u6307\u5b9a\u50b3\u56de\u985e\u578b\uff1a<\/strong> \u5728\u5ba3\u544a\u65b9\u6cd5\u6642\uff0c\u5c07\u50b3\u56de\u985e\u578b\u9644\u52a0\u81f3\u65b9\u6cd5\u884c\u7684\u7d50\u5c3e\uff08\u4f8b\u5982\uff0c<code>+fetchData() DataSet<\/code>\uff09\u3002\u9019\u80fd\u8b93\u4f60\u7684\u5de5\u7a0b\u5718\u968a\u7372\u5f97\u7cbe\u78ba\u7684\u5be6\u4f5c\u80cc\u666f\u3002<\/li>\n<li><strong>\u4fdd\u6301\u591a\u91cd\u6027\u6e05\u6670\uff1a<\/strong> \u70ba\u8868\u793a\u9663\u5217\u6578\u91cf\u6216\u96c6\u5408\u5927\u5c0f\uff0c\u8acb\u76f4\u63a5\u5c07\u591a\u91cd\u6027\u6587\u5b57\u5b57\u4e32\u9644\u52a0\u81f3\u95dc\u806f\u7dda\u5305\u88dd\u4e2d\uff08\u4f8b\u5982\uff0c<code>Customer \"1\" --o \"many\" Order<\/code>).<\/li>\n<\/ul>\n<h2>\u73fe\u5be6\u4e16\u754c\u4e2d\u7684 Mermaid.js \u985e\u5225\u5716\u7bc4\u4f8b<\/h2>\n<h3>\u7bc4\u4f8b 1\uff1a\u652f\u4ed8\u7db2\u95dc\u9818\u57df\u5b50\u7cfb\u7d71\uff08\u5c01\u88dd\u8207\u4ecb\u9762\uff09<\/h3>\n<p>\u6b64\u529f\u80fd\u85cd\u5716\u6a21\u64ec\u7dda\u4e0a\u7d50\u5e33\u9818\u57df\u670d\u52d9\u3002\u5b83\u793a\u7bc4\u4e86\u5982\u4f55\u4f7f\u7528\u5b58\u53d6\u4fee\u98fe\u7b26\u3001\u7fa4\u7d44\u985e\u5225\u6210\u54e1\uff0c\u4e26\u4e7e\u6de8\u5730\u5be6\u4f5c\u4ecb\u9762\u95dc\u4fc2\u3002<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNq1UUFqw0AMvAfyhyWnhNI8IASfAsX0Ymj7AHVXcRd2pUUrtzVp\/147ToiTlNJLdBzNSDOSDZDzxkMtEKcT05XtEVNBG5G0EraYM4vZDd2+1mtPirIFi0Vxgu\/SQD5I5xC5IV2YV+aAQCOi4LYhd+TpJ5XugvY9nYzdPKn4hA+g+AHt2Mp936HaQPKP2F7jSC5x5\/ZFwm2M7pcFrp8FKINVzzTPCtrkhXln736N0w2sIPwRJ6LYNyAt3Y3Pe37Y5fKruP78yszKmAL2aJ4NuvME\/9H9AGFPu8s=\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNq1kU1uwkAMhfdI3GHECoTKARDKqhJC3URqewAzY9KRJnbkcdpGwE1Yd9sT9DbtPZo0VIQftSu8fH5v5rNtA8R46yETyPs9U5dtFJNClSNpKmwxRhazbrtNzWaeFGUFFpPkII+L1ryPDiHnknRklswBgTpGwVVJ7tenr7RwJ7Ztv9eluVfxBc5B8QWqLspN06HMQOHvsDrXkVzBNe2jhOuA\/nwWOHsQoAhWPdMwKmgZR+aZvbs4Tv1gCuGPcXIU+wSkC3fl9R4vdjLZJOeXn5rB1\/vb58du0GaO6f\/LfAP187x9\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">classDiagram\r\n    class PaymentProcessor {\r\n        &lt;&lt;interface&gt;&gt;\r\n        +processPayment(amount) boolean\r\n        +refundPayment(txnId) boolean\r\n    }\r\n\r\n    class StripeGateway {\r\n        -String apiKey\r\n        -String endpointUrl\r\n        +processPayment(amount) boolean\r\n        +refundPayment(txnId) boolean\r\n        -logTransaction(status) void\r\n    }\r\n\r\n    class PayPalGateway {\r\n        -String merchantId\r\n        +processPayment(amount) boolean\r\n        +refundPayment(txnId) boolean\r\n    }\r\n\r\n    StripeGateway ..|&gt; PaymentProcessor : \"\u5be6\u4f5c\"\r\n    PayPalGateway ..|&gt; PaymentProcessor : \"\u5be6\u4f5c\"<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNq1kU1uwkAMhfdI3GHECoTKARDKqhJC3URqewAzY9KRJnbkcdpGwE1Yd9sT9DbtPZo0VIQftSu8fH5v5rNtA8R46yETyPs9U5dtFJNClSNpKmwxRhazbrtNzWaeFGUFFpPkII+L1ryPDiHnknRklswBgTpGwVVJ7tenr7RwJ7Ztv9eluVfxBc5B8QWqLspN06HMQOHvsDrXkVzBNe2jhOuA\/nwWOHsQoAhWPdMwKmgZR+aZvbs4Tv1gCuGPcXIU+wSkC3fl9R4vdjLZJOeXn5rB1\/vb58du0GaO6f\/LfAP187x9\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNq1UUFqw0AMvAfyhyWnhNI8IASfAsX0Ymj7AHVXcRd2pUUrtzVp\/147ToiTlNJLdBzNSDOSDZDzxkMtEKcT05XtEVNBG5G0EraYM4vZDd2+1mtPirIFi0Vxgu\/SQD5I5xC5IV2YV+aAQCOi4LYhd+TpJ5XugvY9nYzdPKn4hA+g+AHt2Mp936HaQPKP2F7jSC5x5\/ZFwm2M7pcFrp8FKINVzzTPCtrkhXln736N0w2sIPwRJ6LYNyAt3Y3Pe37Y5fKruP78yszKmAL2aJ4NuvME\/9H9AGFPu8s=\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p id=\"dKUznWo\"><img loading=\"lazy\" alt=\"\" class=\"alignnone size-full wp-image-621\" decoding=\"async\" height=\"480\" loading=\"lazy\" sizes=\"auto, (max-width: 751px) 100vw, 751px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a19031bd8def.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a19031bd8def.png 751w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a19031bd8def-300x192.png 300w\" width=\"751\"\/><\/p>\n<p><strong>\u8a9e\u6cd5\u89e3\u6790\uff1a<\/strong> \u9019\u500b<code>&lt;&lt;interface&gt;&gt;<\/code> \u6a19\u7c64\u660e\u78ba\u6a19\u793a `PaymentProcessor` \u70ba\u9ad8\u968e\u67b6\u69cb\u5408\u7d04\u3002\u5169\u500b\u5177\u9ad4\u7684\u7db2\u95dc\u5be6\u4f5c\u985e\u5225\u4f7f\u7528\u79c1\u6709\u6b04\u4f4d\uff08<code>-apiKey<\/code>\uff09\u4f86\u5132\u5b58\u654f\u611f\u6191\u8b49\uff0c\u540c\u6642\u516c\u958b\u516c\u6709\u4ed8\u6b3e\u6d41\u7a0b\uff08<code>+processPayment<\/code>\uff09\u900f\u904e\u5be6\u4f5c\u7bad\u982d\uff08<code>..|&gt;<\/code>).<\/p>\n<h3>\u7bc4\u4f8b 2\uff1a\u4f01\u696d\u7d1a\u8a02\u55ae\u8655\u7406\u5f15\u64ce\uff08\u7d44\u5408\u8207\u591a\u91cd\u6027\uff09<\/h3>\n<p>\u6b64\u9032\u968e\u7cfb\u7d71\u85cd\u5716\u63cf\u7e6a\u4e86\u8907\u96dc\u7684\u96fb\u5b50\u5546\u52d9\u8a02\u55ae\u7ba1\u7406\u67b6\u69cb\uff0c\u793a\u7bc4\u4e86\u5982\u4f55\u5728\u591a\u500b\u76f8\u4e92\u95dc\u806f\u7684\u985e\u5225\u4e4b\u9593\u8a18\u9304\u7d50\u69cb\u4e0a\u7684\u64c1\u6709\u95dc\u4fc2\u8207\u7269\u4ef6\u6578\u91cf\u3002<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNp1UctqAzEMvAfyD8KnNmEDufZQKJtLTi2k\/QDVFqnBj62spYTQf6\/3kcTbbX2wYEbjGcnaYUo7i0dGv1xAPrpDoG6TRE8M5wHtztoGAT0Se1MQB2EbjhDQU4E2DjU9syG+u4e+DuT3clFa9czMJ3boxGSHQmDyVTPlu6Cq0T\/riAO6g6C0qZBqdLp1WfQaBV1OY2L77uj\/OHshP4tkMzhJ1IGfLQaxcirg4XFo2Gp6IX4LVv50ejKGKdfzfJNJmEjmuJ46jWgTUx6rjub3RNdfVFsFVRVBeQwnNa78AVT8CkkNvbe51XazWXX9q153bdbRZye6CC7xh7cfb33pwzYJJKofTEiiUg==\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNp1UU1LAzEQvRf6H0JOWtlCrx4E2V56Uqj+gDEZSiCbrMnsoRTBQkG9CV79Dx7En+Sq\/8Lsh23WbXPIwHvz8t5MhAbvpwoWDrLhgIUjKoSlhSeboWOrBq3OiTLEREvMZETMySmzYAYyjNBcg8ALJ9EdHbO6NuTdcBBb1UzPx1Zox2QKhEyGK3UY7ohKWv+gQ2dAzwmo8JFUgBaFDqIrS6BDGmmLG42H48wIs14kFcBOogq8LcCQomUEN4+z3CmBl+iujaK9TudSOgx11d+kJ4dIfVx0nVo0tz6MlVr5f6LtL\/IJZ0liGc\/ALHm78lPGy5d1+frEm+7d5HwyHo8qxahWbtu\/Pjbl43Pb\/he\/efts1\/X5tvm5X38\/vPNf2NKoPw==\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">classDiagram\r\n    class Customer {\r\n        +int customerId\r\n        +String name\r\n        +placeOrder() Order\r\n    }\r\n\r\n    class Order {\r\n        +int orderId\r\n        +Date dateCreated\r\n        -String internalStatus\r\n        +calculateTotal() double\r\n    }\r\n\r\n    class OrderItem {\r\n        +int itemId\r\n        +int quantity\r\n        +double pricePerUnit\r\n    }\r\n\r\n    class Address {\r\n        +String street\r\n        +String city\r\n        +String postalCode\r\n    }\r\n\r\n    Customer \"1\" --o \"many\" Order : \"\u64c1\u6709\"\r\n    OrderItem \"1..*\" --* \"1\" Order : \"\u7d44\u6210\"\r\n    Address \"1\" --&gt; Order : \"\u5bc4\u9001\u81f3\"<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNp1UU1LAzEQvRf6H0JOWtlCrx4E2V56Uqj+gDEZSiCbrMnsoRTBQkG9CV79Dx7En+Sq\/8Lsh23WbXPIwHvz8t5MhAbvpwoWDrLhgIUjKoSlhSeboWOrBq3OiTLEREvMZETMySmzYAYyjNBcg8ALJ9EdHbO6NuTdcBBb1UzPx1Zox2QKhEyGK3UY7ohKWv+gQ2dAzwmo8JFUgBaFDqIrS6BDGmmLG42H48wIs14kFcBOogq8LcCQomUEN4+z3CmBl+iujaK9TudSOgx11d+kJ4dIfVx0nVo0tz6MlVr5f6LtL\/IJZ0liGc\/ALHm78lPGy5d1+frEm+7d5HwyHo8qxahWbtu\/Pjbl43Pb\/he\/efts1\/X5tvm5X38\/vPNf2NKoPw==\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNp1UctqAzEMvAfyD8KnNmEDufZQKJtLTi2k\/QDVFqnBj62spYTQf6\/3kcTbbX2wYEbjGcnaYUo7i0dGv1xAPrpDoG6TRE8M5wHtztoGAT0Se1MQB2EbjhDQU4E2DjU9syG+u4e+DuT3clFa9czMJ3boxGSHQmDyVTPlu6Cq0T\/riAO6g6C0qZBqdLp1WfQaBV1OY2L77uj\/OHshP4tkMzhJ1IGfLQaxcirg4XFo2Gp6IX4LVv50ejKGKdfzfJNJmEjmuJ46jWgTUx6rjub3RNdfVFsFVRVBeQwnNa78AVT8CkkNvbe51XazWXX9q153bdbRZye6CC7xh7cfb33pwzYJJKofTEiiUg==\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>\u5728 VPasCode \u4e2d\u7de8\u8f2f Mermaid<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p id=\"nhNYQKB\"><img loading=\"lazy\" alt=\"\" class=\"alignnone size-full wp-image-622\" decoding=\"async\" height=\"450\" loading=\"lazy\" sizes=\"auto, (max-width: 731px) 100vw, 731px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a190321054b5.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a190321054b5.png 731w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a190321054b5-300x185.png 300w\" width=\"731\"\/><\/p>\n<p><strong>\u8a9e\u6cd5\u5206\u89e3\uff1a<\/strong>\u6b64\u7bc4\u4f8b\u8aaa\u660e\u4e86\u805a\u5408\u8207\u7d44\u5408\u4e4b\u9593\u7684\u5dee\u7570\u3002\u5be6\u5fc3\u83f1\u5f62\u7bad\u982d\uff08<code>--*<\/code>) \u8868\u793a `OrderItem` \u8207 `Order` \u7dca\u5bc6\u95dc\u806f\uff08\u82e5\u522a\u9664\u8a02\u55ae\uff0c\u5176\u500b\u5225\u9805\u76ee\u4e5f\u6703\u88ab\u92b7\u6bc0\uff09\u3002\u76f8\u53cd\u5730\uff0c\u7a7a\u5fc3\u83f1\u5f62\u7bad\u982d\uff08<code>--o<\/code>) \u8868\u793a `Customer` \u64c1\u6709\u591a\u500b\u8a02\u55ae\uff0c\u4f46\u5169\u500b\u5be6\u9ad4\u5747\u53ef\u7368\u7acb\u5b58\u5728\u3002\u591a\u91cd\u6027\u5b57\u4e32\uff08\u4f8b\u5982 <code>\"1..*\"<\/code>) \u5b9a\u7fa9\u7cfb\u7d71\u7684\u95dc\u806f\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ec0\u9ebc\u662f\u985e\u5716\uff1f \u4e00\u500b\u985e\u5716\u662f\u4e00\u7a2e\u7d50\u69cb\u6027UML\u5716\uff0c\u7528\u65bc\u5448\u73fe\u7269\u4ef6\u5c0e\u5411\u8edf\u9ad4\u7cfb\u7d71\u7684\u975c\u614b\u67b6\u69cb\u3002&#8230;<\/p>\n","protected":false},"author":4,"featured_media":2281,"parent":0,"menu_order":2,"template":"","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"ld_collection":[14],"class_list":["post-2280","ld_docs","type-ld_docs","status-publish","has-post-thumbnail","hentry","ld_collection-vpascode-docs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mermaid Class Diagram Syntax | VPasCode Text to Diagram Guide<\/title>\n<meta name=\"description\" content=\"Document code structures and object relationships using Mermaid class diagrams in VPasCode, a free diagram-as-code tool.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vpascode.com\/tw\/docs\/vpascode-docs\/mermaid-js-class-diagram-syntax-guide\/\" \/>\n<meta property=\"og:locale\" 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