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程式設計概念-設計模式-組合模式

程式設計概念
設計模式
組合模式

這種模式除了定義物件內容，也定義了物件之間的關係，這種關係是用資料結構方式呈現，一般是用樹結構，用其他類型的結構也是可以的，在這樣設計的時候需要考慮走訪的問題，此外，如果部分屬性可以定義，可以用繼承方式來寫，在新的類別中某些參數可以先賦予執。
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