B结构体包含A结构体在uml中用什么关系

Open a C# project. Create a UML modeling project. See How to: Create UML Modeling Projects and Diagrams. Add a UML class diagram to the modeling project: On the Architecture menu, choose New Diagram. In the Add New Diagram dialog box, select UML Class Diagram. Open Architecture Explorer: On the Architecture menu, choose Windows, Architecture Explorer. See How to: Find Code with Architecture Explorer. Drag namespaces or types from Architecture Explorer to the UML class diagram surface.