7.1 时序图 时序图(Sequence Diagram),在软件工程中用于展示对象间交互的序列。这种图表特别强调消息流的时间顺序。PlantUML中的时序图不仅直观地展现了消息如何在不同对象间传递,还揭示了系统的运作机制。 7.1.1 时序图的基本元素 时序图由几个关键元素组成:参与者(Participant)、生命线(Lifeline)、消息(Message)...
UML sequence diagrams are used to show how objects interact in a given situation. An important characteristic of a sequence diagram is that time passes from top to bottom : the interaction starts near the top of the diagram and ends at the bottom (i.e.Lower equalsLater). UML顺序图用于显示...
start :步骤一; :mark 语法 **加粗字体**; stop @enduml 1. 2. 3. 4. 5. 6. 7. 8. Conditional 条件语句 控制语句的使用,注意内容 () 的使用 @startuml title act_new_3 start if(是否已下载文件?) then (是) :执行 diagrame\n\\n可实现换行; else (否) :需要下载文件\t可实现空格ab后...
Objects as well as classes can be targets on a sequence diagram, which means that messages can be sent to them. A target is displayed as a rectangle with some text in it. Below the target, its lifeline extends for as long as the target exists. The lifeline is displayed as a vertical...
The first thing to note about these two diagrams is how clearly the sequence diagram indicates the differences in how the participants interact. This is the great strength of interaction diagrams. They aren’t good at showing details of algorithms, such as loops and conditional behavior, but they...
A combined fragment is used to group sets of messages together to show conditional flow in a sequence diagram. The UML 2 specification identifies 11 interaction types for combined fragments. Alternatives Alternatives are used to designate a mutually exclusive choice between two or more message ...
activity diagram (here is the new syntax), component diagram, state diagram, object diagram, wireframe graphical interface PlantUML通过简单和直观的语言来定义图形,它可以生成PNG、SVG和二进制 图片。下面是一个简单的示例: #+BEGIN_SRC plantuml :file ../img/orgmode-babel-sequenceuml.png ...
sequence diagram, use case diagram, class diagram, activity diagram (here is the new syntax), component diagram, state diagram, object diagram, wireframe graphical interface PlantUML通过简单和直观的语言来定义图形,它可以生成PNG、SVG和二进制 图片。下面是一个简单的示例: ...
I’ve been trying to explain to people how to draw sequence diagrams for years, and what I’ve discovered is that the people who get it are either very good at thinking in a logical manner and/or they are good at writing software code. Sequence diagramming really is visual coding, even...
顺序图(Sequence Diagram)简单示例注释语句申明参与者使用非字母的参与者名称(Use non-letters