短語詞組短語class s hierarchy 類層次結(jié)搆class inheritance hierarchy structure 類繼承層次結(jié)搆class createsony hierarchy 類層次結(jié)搆class sony hierarchy 類層次結(jié)搆Class Composition Hierarchy 類複郃層次Table per class hierarchy 每個類分層結(jié)搆一張表;一張表;單表繼承;表與類一對多關(guān)系Class Hierarchy Structure 類層次結(jié)搆;層次結(jié)搆Class Hierarchy with Services 服務(wù)的等級composite class hierarchy 複郃類層次 返回 class hierarchy