Simpler topic design: the document designer can focus on the structure of the topic without having to foresee every variety of content used within the structure.
更简单的主题设计:文档设计者可以把精力集中在主题的结构之上,而无需预见结构内使用的每一种内容。
To allow recursion, a collaboration structure is nested within a class specification, which means that all instances of that class will have an internal structure specified by the class definition.
为了允许递归,协作结构被嵌套到类的规范中。这就是说这个类的所有实例都将有一个由类定义的内部结构。
Specify your structure and the list variable within your structure, which is used internally to dereference back to the container.
指定您的结构和结构之内的列表变量,后者用于在内部取消引用,返回容器。
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