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                # 第 7 章 關聯關系映射 **目錄** + 7.1\. 介紹 + 7.2\. 單向關聯(Unidirectional associations) + 7.2.1\. 多對一(many to one) + 7.2.2\. 一對一(one to one) + 7.2.3\. 一對多(one to many) + 7.3\. 使用連接表的單向關聯(Unidirectional associations with join tables) + 7.3.1\. 一對多(one to many) + 7.3.2\. 多對一(many to one) + 7.3.3\. 一對一(one to one) + 7.3.4\. 多對多(many to many) + 7.4\. 雙向關聯(Bidirectional associations) + 7.4.1\. 一對多(one to many) / 多對一(many to one) + 7.4.2\. 一對一(one to one) + 7.5\. 使用連接表的雙向關聯(Bidirectional associations with join tables) + 7.5.1\. 一對多(one to many) /多對一( many to one) + 7.5.2\. 一對一(one to one) + 7.5.3\. 多對多(many to many) + 7.6\. 更復雜的關聯映射
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