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:Main Admin: as Admin
(Use the application) as (Use)

User -> (Start)
User --> (Use)

Admin ---> (Use)

note right of Admin : This is an example.

note right of (Use)
A note can also be on several lines
end note

note "This note is connected\nto several objects." as N2
(Start) .. N2
N2 .. (Use)

效果图

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:Main Admin: as Admin
(Use the application) as (Use)

User -> (Start)
User --> (Use)

Admin ---> (Use)

note right of Admin : This is an example.

note right of (Use)
A note can also be on several lines
end note

note "This note is connected\nto several objects." as N2
(Start) .. N2
N2 .. (Use)

title uml模型图题目支持MD center header 在此处添加标头 endheader

‘******* 声明用例模块 usecase *******’ (用例名称) as (别名) «构造类型»

usecase 用例名称 as " 描述一

描述2

描述3 .. 描述标题 .. 描述4 " ‘******* 声明角色模块 actor *******’ :角色名称: as 别名 actor 角色名称

‘—- 声明备注:用例线备注可以当做用例来参与到关系连接中—’ note “备注内容” as 备注对象

‘##### 备注模块 位置：left/right/top/bottom #####’ note 位置 of 用例/角色: 描述信息

‘»»»»» 关系模块 »»»»»’ left to right dirction ‘指定布局方向’ 角色 –> 用例:关系线描述

‘—- 用例关系中的备注对象 —-’ 角色 –>备注对象 备注对象 –>用例

center footer 在此处添加脚注 endfooter