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                創建型 ``` 它們的運行機制基于對象的創建方式 它們將對象創建的細節隔離開來 代碼與所創建的對象的類型無關 ``` 結構型 ``` 它們致力于設計出能夠通過組合獲得更強大功能的對象和類的結構 重點是簡化結構并識別類和對象之間的關系 主要關注類的繼承和組合 ``` 行為型 ``` 它們關注對象之間的交互以及對象的響應性 對象應該能夠交互,同時仍然保持松散耦合 ```
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