Tutorials, guides, and best practices for UML diagramming
Explore copyable PlantUML examples for sequence, class, ER, C4, activity, component, and state diagrams, then learn how to style, save, and export them.
探索可复制的 PlantUML 时序图、类图、ER 图、C4 架构图、活动图、组件图和状态图示例，并学习如何设置样式、保存和导出。
Choose Mermaid for everyday documentation and PlantUML for formal UML or complex architecture. Compare capabilities, version limits, and delivery scenarios.
日常文档默认 Mermaid，正式 UML 与复杂架构图默认 PlantUML。通过交付物决策、能力矩阵与专项入口，选择适合团队的图表即代码工具。
Learn Mermaid flowchart syntax with practical examples for authentication, CI/CD, microservices, error handling, SSO, and e-commerce workflows.
Learn how to create beautiful sequence diagrams using Mermaid syntax. Covers basic syntax, advanced patterns, and best practices for API documentation.
Export PlantUML diagrams from OnUML as PNG or SVG, save editable cloud projects, restore browser drafts, and create public share links.
了解如何从 OnUML 将 PlantUML 图表导出为 PNG 或 SVG、保存可编辑的云端项目、恢复浏览器草稿并创建公开分享链接。
Create PlantUML C4 diagrams for system context, containers, and components using C4-PlantUML macros, reproducible includes, and a connected example.
使用 C4-PlantUML 宏、可复现的引用方式和贯穿始终的示例，创建系统上下文、容器和组件层级的 PlantUML C4 架构图。
Build a PlantUML class diagram with fields, methods, visibility, inheritance, interfaces, dependency, aggregation, composition, and multiplicity.
学习使用字段、方法、可见性、继承、接口、依赖、聚合、组合和多重性构建 PlantUML 类图。
Learn how to style PlantUML diagrams with named colors, hex values, built-in themes, CSS-like styles, and accessible color choices.
学习使用命名颜色、十六进制值、内置主题、类 CSS 样式和无障碍配色来美化 PlantUML 图表。
Create a PlantUML ER diagram with entities, keys, required attributes, and crow's-foot cardinality, and compare IE, Chen, and class diagram notation.
使用实体、键、必填属性和乌鸦脚基数创建 PlantUML ER 图，并比较 IE、Chen 与类图表示法。
