{"id":2239,"date":"2026-08-04T16:41:15","date_gmt":"2026-08-04T16:41:15","guid":{"rendered":"https:\/\/www.vpascode.com\/cn\/complete-guide-to-plantuml-sequence-diagrams-syntax-examples-best-practices\/"},"modified":"2026-08-04T16:41:15","modified_gmt":"2026-08-04T16:41:15","slug":"complete-guide-to-plantuml-sequence-diagrams-syntax-examples-best-practices","status":"publish","type":"post","link":"https:\/\/www.vpascode.com\/cn\/complete-guide-to-plantuml-sequence-diagrams-syntax-examples-best-practices\/","title":{"rendered":"PlantUML \u5e8f\u5217\u56fe\u5b8c\u6574\u6307\u5357\uff1a\u8bed\u6cd5\u3001\u793a\u4f8b\u4e0e\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"<p>\u4e00\u4e2a<strong>PlantUML \u5e8f\u5217\u56fe<\/strong>\u662f\u4e00\u79cd\u57fa\u4e8e\u6587\u672c\u7684\u8868\u793a\u65b9\u5f0f\uff0c\u7528\u4e8e\u63cf\u8ff0\u8f6f\u4ef6\u7cfb\u7edf\u4e2d\u5bf9\u8c61\u6216\u8fdb\u7a0b\u968f\u65f6\u95f4\u63a8\u79fb\u7684\u4ea4\u4e92\u8fc7\u7a0b\u3002\u901a\u8fc7\u4f7f\u7528\u7eaf\u6587\u672c\u9886\u57df\u7279\u5b9a\u8bed\u8a00\uff08DSL\uff09\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u7f16\u5199\u56fe\u8868\u4ee3\u7801\uff0c\u8fd9\u4e9b\u4ee3\u7801\u4f1a\u81ea\u52a8\u6e32\u67d3\u6210\u6e05\u6670\u7684\u53ef\u89c6\u5316\u56fe\u5f62\u3002\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u4e00\u4e2a\u76f4\u89c2\u7684<strong>\u5e8f\u5217\u56fe\u7f16\u8f91\u5668<\/strong>\u6216\u4e00\u4e2a\u7075\u6d3b\u7684<strong>PlantUML \u7f16\u8f91\u5668<\/strong>\u6765\u8bbe\u8ba1\u3001\u6587\u6863\u5316\u548c\u5171\u4eab\u7cfb\u7edf\u67b6\u6784\uff0c\u90a3\u4e48\u638c\u63e1 PlantUML \u8bed\u6cd5\u662f\u63d0\u5347\u6280\u672f\u6587\u6863\u5de5\u4f5c\u6d41\u7a0b\u6548\u7387\u6700\u5feb\u7684\u65b9\u6cd5\u4e4b\u4e00\u3002<\/p>\n<p><img fetchpriority=\"high\" alt=\"Illustrated guide banner showing a PlantUML sequence diagram code on the left transforming into a clean rendered visual workflow on the right.\" class=\"alignnone size-full wp-image-1815\" decoding=\"async\" fetchpriority=\"high\" height=\"816\" sizes=\"(max-width: 1312px) 100vw, 1312px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-sequence-diagram-guide-hero-banner.jpg\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-sequence-diagram-guide-hero-banner.jpg 1312w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-sequence-diagram-guide-hero-banner-300x187.jpg 300w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-sequence-diagram-guide-hero-banner-1024x637.jpg 1024w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-sequence-diagram-guide-hero-banner-768x478.jpg 768w\" width=\"1312\"\/><\/p>\n<hr \/>\n<h2>\u4ec0\u4e48\u662f PlantUML \u5e8f\u5217\u56fe\uff1f\uff08\u4ee5\u53ca\u4e3a\u4f55\u8981\u4f7f\u7528\u201c\u56fe\u8868\u5373\u4ee3\u7801\u201d\uff09<\/h2>\n<p>PlantUML \u5e8f\u5217\u56fe\u5c55\u793a\u4e86\u5728\u7279\u5b9a\u6267\u884c\u573a\u666f\u4e2d\uff0c\u7cfb\u7edf\u5404\u53c2\u4e0e\u8005\u4e4b\u95f4\u6d88\u606f\u4ea4\u6362\u7684\u9010\u6b65\u8fc7\u7a0b\u3002\u4e0e\u4f20\u7edf\u7684\u62d6\u653e\u5f0f\u8bbe\u8ba1\u5de5\u5177\u4e0d\u540c\uff0cPlantUML \u9075\u5faa<strong>\u56fe\u8868\u5373\u4ee3\u7801<\/strong>\u8303\u5f0f\uff0c\u4f7f\u8f6f\u4ef6\u67b6\u6784\u5e08\u548c\u5de5\u7a0b\u5e08\u80fd\u591f\u7f16\u5199\u53ef\u8bfb\u7684\u811a\u672c\u6587\u4ef6\uff08\u4f8b\u5982<code>.puml<\/code>\uff09\u8fd9\u4e9b\u6587\u4ef6\u53ef\u901a\u8fc7\u7f16\u7a0b\u65b9\u5f0f\u81ea\u52a8\u6e32\u67d3\u4e3a\u56fe\u8868\u3002<\/p>\n<h3>\u6838\u5fc3\u4f18\u52bf\uff1a\u7248\u672c\u63a7\u5236\u3001\u901f\u5ea6\u4e0e\u4e00\u81f4\u6027<\/h3>\n<ul>\n<li><strong>\u652f\u6301\u7248\u672c\u63a7\u5236\uff1a<\/strong>\u7531\u4e8e\u56fe\u8868\u4ee5\u7eaf\u6587\u672c\u5f62\u5f0f\u5b58\u5728\uff0c\u56e0\u6b64\u53ef\u4ee5\u5b58\u50a8\u5728 Git \u4ed3\u5e93\u4e2d\uff0c\u5e76\u4e0e\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u4e00\u8d77\u8fdb\u884c\u5dee\u5f02\u6bd4\u8f83\u548c\u5408\u5e76\u3002<\/li>\n<li><strong>\u7ef4\u62a4\u901f\u5ea6\uff1a<\/strong>\u66f4\u65b0\u5de5\u4f5c\u6d41\u4ec5\u9700\u51e0\u79d2\u949f\u2014\u2014\u53ea\u9700\u7f16\u8f91\u4e00\u884c\u6587\u672c\uff0c\u800c\u65e0\u9700\u624b\u52a8\u91cd\u65b0\u5b9a\u4f4d\u65b9\u6846\u548c\u91cd\u65b0\u8fde\u63a5\u7bad\u5934\u3002<\/li>\n<li><strong>\u89c6\u89c9\u4e00\u81f4\u6027\uff1a<\/strong>\u6e32\u67d3\u5de5\u5177\u4f1a\u81ea\u52a8\u8ba1\u7b97\u5e03\u5c40\u3001\u5bf9\u9f50\u65b9\u5f0f\u548c\u95f4\u8ddd\uff0c\u786e\u4fdd\u56e2\u961f\u6240\u6709\u6587\u6863\u7684\u6837\u5f0f\u4fdd\u6301\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<hr \/>\n<h2>\u6838\u5fc3\u8bed\u6cd5\u57fa\u7840\uff1a\u5982\u4f55\u521b\u5efa\u60a8\u7684\u7b2c\u4e00\u4e2a\u5e8f\u5217\u56fe<\/h2>\n<p>PlantUML \u4f7f\u7528\u7b80\u5355\u3001\u4eba\u7c7b\u53ef\u8bfb\u7684\u5173\u952e\u8bcd\u6765\u5b9a\u4e49\u7cfb\u7edf\u5b9e\u4f53\u548c\u4ea4\u4e92\u8def\u5f84\u3002<\/p>\n<h3>\u58f0\u660e\u53c2\u4e0e\u8005\u3001\u89d2\u8272\u548c\u8fb9\u754c<\/h3>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e0e\u5176\u5728\u7cfb\u7edf\u67b6\u6784\u4e2d\u89d2\u8272\u76f8\u5339\u914d\u7684\u5173\u952e\u8bcd\u6765\u663e\u5f0f\u5b9a\u4e49\u53c2\u4e0e\u8005\uff1a<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:DO_12eCm44JlWVp3adlnxg6e5OfGg6qgFMzYAA5gGhAs-FUDOc-p-nuCKqJ2GFCuS8QQN80kci2PJq-hhSU9G9Hj0sSayyL50CP_vgn7GeNHW6XTf5SmydRPZBhYJBbvwZ4i89v6GUdzHhg6CyxM4ZWSqvN3QR3w7K7EQhIKKBE2lIA7zYeVaA6tMTo57QrMNUKWyMFWRhGBFMU5cVgqvGS0\" rel=\"noopener noreferrer\" target=\"_blank\">\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>\n<span>\u5728 VPasCode \u4e2d\u7f16\u8f91 PlantUML<\/span>\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\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:SoWkIImgAStDuKfCBialKWWjJYtYAW0APIPd5YJcbIWeEGPuAhWdbgIM9rOgAIGMmzXSAOabYKc9nQaAIW7vnINfHQd1WJvW1IvEN4dvfNafYKML2ahXgKaAZWK5O8bGJoukaFaAkdP0jfN2ywQTJzjtF-kVy6JN4gvGJv0mr70hXG3_u105_SI2JFtYqgJSp18kg0n8aOkJbSAJ_NEVhftnOjs6ftkdSZcavgK0lG00\" \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 PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"language-plantuml\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\nactor User\nparticipant \"API Gateway\" as Gateway\ndatabase \"PostgreSQL\" as DB\nboundary \"Web App\" as UI\n\nUser -&gt; UI: \u70b9\u51fb\u63d0\u4ea4\nUI -&gt; Gateway: POST \/api\/submit\nGateway -&gt; DB: \u4fdd\u5b58\u8bb0\u5f55\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:SoWkIImgAStDuKfCBialKWWjJYtYAW0APIPd5YJcbIWeEGPuAhWdbgIM9rOgAIGMmzXSAOabYKc9nQaAIW7vnINfHQd1WJvW1IvEN4dvfNafYKML2ahXgKaAZWK5O8bGJoukaFaAkdP0jfN2ywQTJzjtF-kVy6JN4gvGJv0mr70hXG3_u105_SI2JFtYqgJSp18kg0n8aOkJbSAJ_NEVhftnOjs6ftkdSZcavgK0lG00\" \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 PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n             <\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:DO_12eCm44JlWVp3adlnxg6e5OfGg6qgFMzYAA5gGhAs-FUDOc-p-nuCKqJ2GFCuS8QQN80kci2PJq-hhSU9G9Hj0sSayyL50CP_vgn7GeNHW6XTf5SmydRPZBhYJBbvwZ4i89v6GUdzHhg6CyxM4ZWSqvN3QR3w7K7EQhIKKBE2lIA7zYeVaA6tMTo57QrMNUKWyMFWRhGBFMU5cVgqvGS0\" rel=\"noopener noreferrer\" target=\"_blank\">\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>\n<span>\u5728 VPasCode \u4e2d\u7f16\u8f91 PlantUML<\/span>\n<\/a>\n<\/div>\n<\/div>\n<h3>\u6d88\u606f\u4e0e\u7bad\u5934\uff1a\u540c\u6b65\u8c03\u7528\u4e0e\u5f02\u6b65\u8c03\u7528<\/h3>\n<p>\u7bad\u5934\u7684\u65b9\u5411\u548c\u5916\u89c2\u8868\u793a\u7ec4\u4ef6\u4e4b\u95f4\u901a\u4fe1\u7684\u6d41\u5411\uff1a<\/p>\n<p>\u00a0<\/p>\n<table>\n<thead>\n<tr>\n<th>\u8bed\u6cd5<\/th>\n<th>\u53ef\u89c6\u5316\u8f93\u51fa<\/th>\n<th>\u901a\u4fe1\u7c7b\u578b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>A -&gt; B<\/code><\/td>\n<td>\u5b9e\u7ebf\u7bad\u5934\uff0c\u5b9e\u5fc3\u7bad\u5934\u5934<\/td>\n<td>\u540c\u6b65\u6d88\u606f\u8c03\u7528<\/td>\n<\/tr>\n<tr>\n<td><code>A --&gt; B<\/code><\/td>\n<td>\u865a\u7ebf\u7bad\u5934\uff0c\u5b9e\u5fc3\u7bad\u5934\u5934<\/td>\n<td>\u54cd\u5e94\/\u8fd4\u56de\u6d88\u606f<\/td>\n<\/tr>\n<tr>\n<td><code>A -&gt;&gt; B<\/code><\/td>\n<td>\u5b9e\u7ebf\u7bad\u5934\uff0c\u7a7a\u5fc3\u7bad\u5934\u5934<\/td>\n<td>\u5f02\u6b65\u6d88\u606f\u8c03\u7528<\/td>\n<\/tr>\n<tr>\n<td><code>A - B<\/code><\/td>\n<td>\u534a\u7bad\u5934<\/td>\n<td>\u5355\u5411\/\u4e8b\u4ef6\u6d88\u606f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>PlantUML \u5e8f\u5217\u56fe\u771f\u5b9e\u4e16\u754c\u793a\u4f8b<\/h2>\n<p>\u5c06\u8fd9\u4e9b\u5e38\u89c1\u7684\u67b6\u6784\u6a21\u5f0f\u590d\u5236\u5e76\u9002\u914d\u5230\u60a8\u7684\u6280\u672f\u6587\u6863\u4e2d\u3002<\/p>\n<h3>\u793a\u4f8b 1\uff1a\u7528\u6237\u8ba4\u8bc1\u4e0e JWT \u4ee4\u724c\u6d41\u7a0b<\/h3>\n<p><img alt=\"Sequence diagram example 'User Authentication &amp; JWT Token Flow'\" class=\"alignnone wp-image-1839 size-full\" decoding=\"async\" height=\"745\" sizes=\"(max-width: 1192px) 100vw, 1192px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7214a2d6f33.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7214a2d6f33.png 1192w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7214a2d6f33-300x188.png 300w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7214a2d6f33-1024x640.png 1024w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7214a2d6f33-768x480.png 768w\" width=\"1192\"\/><\/p>\n<p>\u5bf9\u5e94\u7684 PlantUML \u4ee3\u7801\uff1a<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:ZL6xJiCm5Dqj-H-ECfMXQa1C6L2RPW660arXTfqhQk7QbH-HuEkvIIgW6vxiw_Eqbp6faFBHIg5oyYuVznHuhvCFM5j3BabnOeZHvgHSGh7AwO0jXTveAg0YXe4KdKfghoAXs4KAQCx74T7KKaWngM5-Dp8gF6ssBHRMlnk7cGxKyQrHDbwDzgPNYSxQeoNpchh2SwRmYJnu1D8-T7_GWqzJO_vZyK8f1pUXXu0SaoxGJBO9hygQ3klV25A0rsJBObFo2ZTbYSqZPWzlBLPQKune_GSvJaoMgz-x_fzAj-KrTevV_E23-I8kGQwxI3SrN_AOF-SR\" rel=\"noopener noreferrer\" target=\"_blank\">\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>\n<span>\u5728 VPasCode \u4e2d\u7f16\u8f91 PlantUML<\/span>\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\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:XP2_JiCm48VtUufJfdQe28Wf0oeX4mn5QX6pcrXWoNKgn-aBC91AmDIe0t-5G498X6uC2FLbY1lU0ZT6q0rllllv--xSJXIHAXrm8AcAHJheKmaaLB747SweK30qVHQo8H4AdUrK7MENoX4BgOCamMK18g98doGKdOE4IWn-hdKWy04i2LjRTTp3_KwtXsiyFc826-NfYpulcaif6n55BR8McGU1xw6-VQnUxnUJ9vszLSMi_CZ_mWOV-DZwHLVpINbvOxCwdnaoH7Gr3OGhr5TZdMVM36YErHcA7TN33TV5pXusTWzxM1Nphsdn-Vwm69yrWNApg9xU_GFOTDUDvbbVPFhw1AY8LkUeLsoRelduRm00\" \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 PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"language-plantuml\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\nautonumber\nactor Client\nparticipant \"Auth Service\" as Auth\ndatabase \"User Database\" as DB\n\nClient -&gt; Auth: POST \/login (\u51ed\u636e)\nactivate Auth\nAuth -&gt; DB: \u67e5\u8be2\u7528\u6237\u8bb0\u5f55\nactivate DB\nDB --&gt; Auth: \u8fd4\u56de\u7528\u6237\u6570\u636e\ndeactivate DB\n\nalt \u6709\u6548\u51ed\u636e\n    Auth --&gt; Client: 200 OK (JWT \u8bbf\u95ee\u4ee4\u724c)\nelse \u65e0\u6548\u51ed\u636e\n    Auth --&gt; Client: 401 \u672a\u6388\u6743\nend\ndeactivate Auth\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:XP2_JiCm48VtUufJfdQe28Wf0oeX4mn5QX6pcrXWoNKgn-aBC91AmDIe0t-5G498X6uC2FLbY1lU0ZT6q0rllllv--xSJXIHAXrm8AcAHJheKmaaLB747SweK30qVHQo8H4AdUrK7MENoX4BgOCamMK18g98doGKdOE4IWn-hdKWy04i2LjRTTp3_KwtXsiyFc826-NfYpulcaif6n55BR8McGU1xw6-VQnUxnUJ9vszLSMi_CZ_mWOV-DZwHLVpINbvOxCwdnaoH7Gr3OGhr5TZdMVM36YErHcA7TN33TV5pXusTWzxM1Nphsdn-Vwm69yrWNApg9xU_GFOTDUDvbbVPFhw1AY8LkUeLsoRelduRm00\" \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 PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n             <\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:ZL6xJiCm5Dqj-H-ECfMXQa1C6L2RPW660arXTfqhQk7QbH-HuEkvIIgW6vxiw_Eqbp6faFBHIg5oyYuVznHuhvCFM5j3BabnOeZHvgHSGh7AwO0jXTveAg0YXe4KdKfghoAXs4KAQCx74T7KKaWngM5-Dp8gF6ssBHRMlnk7cGxKyQrHDbwDzgPNYSxQeoNpchh2SwRmYJnu1D8-T7_GWqzJO_vZyK8f1pUXXu0SaoxGJBO9hygQ3klV25A0rsJBObFo2ZTbYSqZPWzlBLPQKune_GSvJaoMgz-x_fzAj-KrTevV_E23-I8kGQwxI3SrN_AOF-SR\" rel=\"noopener noreferrer\" target=\"_blank\">\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>\n<span>\u5728 VPasCode \u4e2d\u7f16\u8f91 PlantUML<\/span>\n<\/a>\n<\/div>\n<\/div>\n<h3>\u793a\u4f8b 2\uff1a\u7535\u5b50\u5546\u52a1\u652f\u4ed8\u7f51\u5173\u96c6\u6210<\/h3>\n<p id=\"lYxOGZN\"><img alt=\"Sequence diagram example: 'E-Commerce Payment Gateway Integration'\" class=\"alignnone wp-image-1840 size-full\" decoding=\"async\" height=\"745\" sizes=\"(max-width: 1192px) 100vw, 1192px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a721507ddca4.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a721507ddca4.png 1192w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a721507ddca4-300x188.png 300w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a721507ddca4-1024x640.png 1024w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a721507ddca4-768x480.png 768w\" width=\"1192\"\/><\/p>\n<p>\u5bf9\u5e94\u7684 PlantUML \u4ee3\u7801\uff1a<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">PlantUML<\/span>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:PL512i8m4Bm7yeT5FEYX7-X12Zr8JnQA3mZ9QeEsAPkqukzTsmHBFIMxCpipcnG-A0fZzvH2wU08oj47ro59CJ1WjHrK7s1NjgWVRWnmhNQWF1yRmeKC4ZH8azKuK-REXbMhTuTyEQk0B_MUUR4dXHJ97B8JE-HGklvcgKjIr-eBp0LZX2oI80vlfrMzn65sLC-X9gVHUoXRHNU4m_wucbfbI16pdrLgDQFMY0QD50R_PwDdpBvKSOFDo6eVPgUjSsXQzuAgdno_8UlUKOe2UyFVym40\" rel=\"noopener noreferrer\" target=\"_blank\">\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>\n<span>\u5728 VPasCode \u4e2d\u7f16\u8f91 PlantUML<\/span>\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\">PlantUML<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:SoWkIImgAStDuKfCBialKd0kBIx9pqqjuYe02cScPnOavfKeA3bdf2PdvvUMA8HwAYaa5WCfL7d_efJK8eNWrAAopEHKi0gm2AgYWCJAt5GWmpsn9BKyiHAi32h6nGMpLq7N3cYwbSBpXUjUh5loOjsYfxrJkK8zGS9W8wqKddRCVhfx5rG6wEZCCg1vKFiWxW2gXPeBLBsavVc4jcUTYv-jsQUWeQA9q06t6kOkNOGTpwQiVx9xnhEE2K-xvdEbf6BeWTe3TIl4BK-tRu8u6ba3n5aWzmFLmlm8D7_6lkTBTZtjd_XywOgN2xU-dBk8oo4rBmKO3G00\" \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 PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"language-plantuml\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\nactor Customer\nparticipant \"Checkout UI\" as UI\nparticipant \"Order Service\" as Order\nparticipant \"Payment Gateway\" as Payment\n\nCustomer -&gt; UI: \u786e\u8ba4\u8ba2\u5355\nUI -&gt; Order: \u521b\u5efa\u8ba2\u5355\nactivate Order\nOrder -&gt; Payment: \u5904\u7406\u6263\u6b3e ($)\nactivate Payment\n\nPayment --&gt; Order: \u652f\u4ed8\u6210\u529f\ndeactivate Payment\nOrder --&gt; UI: \u8ba2\u5355\u5df2\u786e\u8ba4\ndeactivate Order\nUI --&gt; Customer: \u663e\u793a\u53d1\u7968\u9875\u9762\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:SoWkIImgAStDuKfCBialKd0kBIx9pqqjuYe02cScPnOavfKeA3bdf2PdvvUMA8HwAYaa5WCfL7d_efJK8eNWrAAopEHKi0gm2AgYWCJAt5GWmpsn9BKyiHAi32h6nGMpLq7N3cYwbSBpXUjUh5loOjsYfxrJkK8zGS9W8wqKddRCVhfx5rG6wEZCCg1vKFiWxW2gXPeBLBsavVc4jcUTYv-jsQUWeQA9q06t6kOkNOGTpwQiVx9xnhEE2K-xvdEbf6BeWTe3TIl4BK-tRu8u6ba3n5aWzmFLmlm8D7_6lkTBTZtjd_XywOgN2xU-dBk8oo4rBmKO3G00\" \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 PlantUML in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n             <\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:PL512i8m4Bm7yeT5FEYX7-X12Zr8JnQA3mZ9QeEsAPkqukzTsmHBFIMxCpipcnG-A0fZzvH2wU08oj47ro59CJ1WjHrK7s1NjgWVRWnmhNQWF1yRmeKC4ZH8azKuK-REXbMhTuTyEQk0B_MUUR4dXHJ97B8JE-HGklvcgKjIr-eBp0LZX2oI80vlfrMzn65sLC-X9gVHUoXRHNU4m_wucbfbI16pdrLgDQFMY0QD50R_PwDdpBvKSOFDo6eVPgUjSsXQzuAgdno_8UlUKOe2UyFVym40\" rel=\"noopener noreferrer\" target=\"_blank\">\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>\n<span>\u5728 VPasCode \u4e2d\u7f16\u8f91 PlantUML<\/span>\n<\/a>\n<\/div>\n<\/div>\n<hr \/>\n<h2>PlantUML \u9ad8\u7ea7\u529f\u80fd\uff1a\u5faa\u73af\u3001\u6761\u4ef6\u4e0e\u5206\u7ec4<\/h2>\n<p>\u4e3a\u4e86\u51c6\u786e\u6355\u6349\u590d\u6742\u7684\u4e1a\u52a1\u903b\u8f91\uff0cPlantUML \u63d0\u4f9b\u4e86\u5185\u7f6e\u7684\u63a7\u5236\u7ed3\u6784\uff0c\u53ef\u5c06\u5e8f\u5217\u5c01\u88c5\u4e3a\u6e05\u6670\u7684\u89c6\u89c9\u6846\u67b6\u3002<\/p>\n<h3>\u4f7f\u7528\u4ee5\u4e0b\u7ed3\u6784\u8868\u793a\u903b\u8f91\uff1a<code>alt<\/code>, <code>opt<\/code>\u3001\u4ee5\u53ca<code>loop<\/code>\u5757<\/h3>\n<ul>\n<li><code>alt \/ else<\/code>\uff1a\u8868\u793a\u6761\u4ef6\u5206\u652f\uff08\u7c7b\u4f3c\u4e8e<code>if-else<\/code>\u7ed3\u6784\uff09\u3002<\/li>\n<li><code>opt<\/code>\uff1a\u8868\u793a\u4ec5\u5728\u6ee1\u8db3\u6761\u4ef6\u65f6\u6267\u884c\u7684\u53ef\u9009\u6b65\u9aa4\u3002<\/li>\n<li><code>loop<\/code>\uff1a\u8868\u793a\u91cd\u590d\u4ea4\u4e92\u6216\u8f6e\u8be2\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<h3>\u6fc0\u6d3b\u4e0e\u505c\u7528\u751f\u547d\u7ebf\uff08<code>activate<\/code> \/ <code>deactivate<\/code>)<\/h3>\n<p>\u4e3a\u6e05\u6670\u663e\u793a\u7ec4\u4ef6\u4f55\u65f6\u6b63\u5728\u79ef\u6781\u6267\u884c\u5de5\u4f5c\uff0c\u8bf7\u4f7f\u7528<code>activate<\/code>\u548c<code>deactivate<\/code>\u8bed\u53e5\uff0c\u6216\u9644\u52a0<code>++<\/code>\u548c<code>--<\/code>\u7b80\u5199\u6307\u5411\u7bad\u5934\u76ee\u6807\u3002\u8fd9\u4f1a\u5728\u53c2\u4e0e\u8005\u7684\u751f\u547d\u7ebf\uff08lifeline\uff09\u4e0a\u521b\u5efa\u5782\u76f4\u6267\u884c\u6761\uff0c\u7a81\u51fa\u663e\u793a\u6267\u884c\u65f6\u957f\u548c\u7cfb\u7edf\u8d1f\u8f7d\u3002<\/p>\n<hr \/>\n<h2>PlantUML \u7684\u5e38\u89c1\u75db\u70b9\uff08\u53ca\u89e3\u51b3\u65b9\u6848\uff09<\/h2>\n<p>\u867d\u7136 PlantUML \u529f\u80fd\u5f3a\u5927\uff0c\u4f46\u914d\u7f6e Java \u548c Graphviz \u7b49\u672c\u5730\u4f9d\u8d56\u53ef\u80fd\u4f1a\u7ed9\u5f00\u53d1\u8005\u5e26\u6765\u4e0d\u5fc5\u8981\u7684\u6469\u64e6\u3002<\/p>\n<h3>\u65e0\u9700\u672c\u5730 Java \u914d\u7f6e\u5373\u53ef\u4fee\u590d PlantUML \u8bed\u6cd5\u9519\u8bef<\/h3>\n<p>\u914d\u7f6e\u672c\u5730\u6e32\u67d3\u7ba1\u7ebf\u5e38\u5bfc\u81f4\u73af\u5883\u4e0d\u5339\u914d\u6216\u7f3a\u5931\u4f9d\u8d56\u9879\u9519\u8bef\u3002\u4f7f\u7528\u73b0\u4ee3\u5728\u7ebf<strong>\u514d\u8d39\u5e8f\u5217\u56fe\u7f16\u8f91\u5668<\/strong>\uff0c\u4f8b\u5982<a href=\"https:\/\/vpascode.com\" rel=\"noopener\" target=\"_blank\">VPasCode<\/a>\u53ef\u5f7b\u5e95\u6d88\u9664\u73af\u5883\u914d\u7f6e\u9700\u6c42\u3002\u82e5\u9047\u5230\u8bed\u6cd5\u9519\u8bef\uff0cVPasCode \u5185\u7f6e\u7684 AI \u4ee3\u7801\u7ea0\u9519\u529f\u80fd\u53ef\u7cbe\u51c6\u5b9a\u4f4d\u65e0\u6548\u884c\u5e76\u7acb\u5373\u4fee\u6b63\u3002<\/p>\n<h3>\u5bfc\u51fa\u56fe\u8868\u5e76\u5d4c\u5165\u6280\u672f\u6587\u6863<\/h3>\n<p>\u5728\u6280\u672f\u56e2\u961f\u95f4\u5171\u4eab\u9759\u6001\u56fe\u8868\u5e38\u4f1a\u7834\u574f\u6587\u6863\u5de5\u4f5c\u6d41\u3002\u4e3a\u4fdd\u6301\u6587\u6863\u66f4\u65b0\uff0c\u8bf7\u5c06\u6e32\u67d3\u540e\u7684\u56fe\u8868\u5bfc\u51fa\u4e3a\u53ef\u7f29\u653e\u77e2\u91cf\u56fe\u5f62\uff08SVG\uff09\u6216\u9ad8\u5206\u8fa8\u7387 PNG\u3002\u4e3a\u5b9e\u73b0\u66f4\u6df1\u5165\u7684\u6587\u6863\u96c6\u6210\uff0cVPasCode \u53ef\u76f4\u63a5\u8fde\u63a5 Visual Paradigm OpenDocs\uff0c\u4f7f\u60a8\u7684\u56fe\u8868\u4e0e\u9879\u76ee\u89c4\u8303\u539f\u751f\u5171\u5b58\u3002<\/p>\n<hr \/>\n<h2>\u4f7f\u7528 VPasCode \u4e0e AI \u5373\u65f6\u6e32\u67d3\u3001\u751f\u6210\u548c\u7f16\u8f91 PlantUML \u5e8f\u5217\u56fe<\/h2>\n<p>Visual Paradigm VPasCode \u662f\u4e00\u4e2a\u4e13\u4e3a\u5f00\u53d1\u8005\u3001\u6280\u672f\u6587\u6863\u64b0\u5199\u8005\u548c\u8f6f\u4ef6\u67b6\u6784\u5e08\u6253\u9020\u7684\u7edf\u4e00\u201c\u56fe\u8868\u5373\u4ee3\u7801\u201d\u5e73\u53f0\uff0c\u5185\u7f6e\u5f3a\u5927\u7684\u539f\u751f AI \u5de5\u5177\u3002<\/p>\n<h3>\u5373\u65f6 AI \u56fe\u8868\u751f\u6210\u4e0e\u4fee\u6539<\/h3>\n<p>\u6b63\u5982\u6211\u4eec\u5728<a href=\"https:\/\/updates.visual-paradigm.com\/releases\/vpascode-ai-diagram-generation-code-modification-update\/\" rel=\"noopener\" target=\"_blank\">VPasCode \u91cd\u5927\u66f4\u65b0\uff1a\u5229\u7528 AI \u5373\u65f6\u751f\u6210\u548c\u4fee\u6539\u56fe\u8868<\/a>\uff0c\u60a8\u53ef\u4ee5\u5b8c\u5168\u8df3\u8fc7\u624b\u52a8\u7f16\u7801\uff0c\u76f4\u63a5\u8f93\u5165\u81ea\u7136\u8bed\u8a00\u63d0\u793a\u2014\u2014\u4f8b\u5982<em>\u201c\u4e3a OAuth \u767b\u5f55\u6d41\u7a0b\u751f\u6210 PlantUML 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