@startuml rectangle " " as app1 { rectangle 门户层 as door { rectangle 内部门户 rectangle 外部门户 } rectangle 应用层 as app { rectangle 采购管理 as a1 rectangle 库存管理 as a2 rectangle 供应商管理 as a3 rectangle 合同管理 as a4 ' 用视觉效果辅助布局, a1 -right- a2 #white a2 -right- a3 #white a3 -right- a4 #white } rectangle 支撑层 as sup { rectangle 流程引擎 as s1 rectangle 4A和权限管理 as s2 s1 -right- s2 #white } ' 用 together 和 hidden 来辅助布局 together { door -[hidden]- app app -[hidden]- sup } } @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art