样式（线条etc）

@startuml
title 使用方括号([])表示的线混合样式
class foo类
class bar类
bar类1 : [#red,thickness=1]
bar类2 : [#red,dashed,thickness=2]
bar类3 : [#green,dashed,thickness=4]
bar类4 : [#blue,dotted,thickness=8]
bar类5 : [#blue,plain,thickness=16]
foo类 --> bar类                             : ∅
foo类 -[#red,thickness=1]-> bar类1          : [#red,1]
foo类 -[#red,dashed,thickness=2]-> bar类2   : [#red,dashed,2]
foo类 -[#green,dashed,thickness=4]-> bar类3 : [#green,dashed,4]
foo类 -[#blue,dotted,thickness=8]-> bar类4  : [blue,dotted,8]
foo类 -[#blue,plain,thickness=16]-> bar类5  : [blue,plain,16]
@enduml

样式实际使用