- list List<IReader>
+ setColor (color Color) : void+ draw (name string) : void
SmallPen
- name : string
读者订阅类
模拟毛笔类图
+ buildFood () : void+ buildDrink () : void
+ Attach(reader IReader)+ Detach(reader IReader)+ NotifyObservers(bookName string)
SubMealBuilderA
draw (name string) : void
+ Update (bookName string) : void
IReader
Green
Color
+ Update (bookName string) : void
+ Change (bookName string) : void
meal
- food: string- drink: string
White
+ setfood (food string) : void+ setdrink (drink string) : void+ getfood () :string+ getdrink () :string
Blue
IPlatform
Meal
Pen
Platform
- color : Color
Reader
