Ensure that the type hierarchy is selected.
确保type hierarchy已被选择。
The product type hierarchy is intended to be relatively static.
产品类型层次结构是相对静态的。
Python 3 now supports a type hierarchy of ABCs that represent numeric classes.
Python3现支持能代表数值类的ABC的类型层次结构。
A product type hierarchy is a strict tree, whereas a category hierarchy can be a directed acyclic graph.
产品类型层次结构是一个严格的树，而类别层次结构则是一个有方向的非循环图表。
It should not be confused with the product type hierarchy. Here are some points to differentiate the two.
不应当将其与产品类型层次结构混淆。
Interface XMLEvent represents the root of this type hierarchy; all event types must extend this interface.
接口XMLEvent表示类型层次结构的根，所有类型的事件必须扩展该接口。
We'll also add another attribute to Person, a role field that points to an instance from a type hierarchy.
我们会给Person加一个属性-角色，用来指定对应的实例是类型层次结构中的哪一种。
Press Ctrl + t again, and the Quick type Hierarchy displays the supertypes in the list (see Figure 8).
再次按下Ctrl +t,QuickType Hierarchy将在列表中显示超类型(参见图8)。
You can create products once you have defined the product type hierarchy and elements for each product type.
定义了产品类型层次结构及每个产品类型的元素后，就可以创建产品了。
If I'm writing client code and need to use an object, that object's class exists in some type hierarchy.
如果我在编写客户机代码并调用了一个对象，这个对象必定存在于某种层次之中。
"Discover Python, Part 2" discusses the Python type hierarchy and provides a discussion of the Python tuple.
“探索python，第2部分”讨论了python类型的层次结构以及Python tuple。
We'll discuss the difference between reference and value types in the section called "the Scala type Hierarchy".
我们会在“scala类型结构”章节讨论引用类型和值类型的区别。
Mapping a product in a product type hierarchy into a category establishes the semantic notion of product of type x.
把产品映射到产品类型层次结构中的类别，就可以形成某类型的产品 这样的语义概念。
Mapping a product in a product type hierarchy into a category establishes the semantic notion of product of type x.
把产品映射到产品类型层次结构中的类别，就可以形成某类型的产品这样的语义概缉础光飞叱读癸嫂含讥念。
If the product type hierarchy is relatively static, including the elements of the type, then consider hardening the type.
如果产品类型层次结构是比较静态的，包括类型元素，那么考虑固定这些类型。
The entire node type hierarchy can be found in section 6.7.22.1 of the JSR-170 specifications (see Resources for a link).
整个节点类型的结构可以在JSR- 170规范的6.7.22.1小节找到(请参阅参考资料获得链接)。
The fourth article in this series, " Discover Python, Part 4: Explore the Python type hierarchy," introduced the Python list.
探索Python类型的层次结构”介绍了 Pythonlist。
The model USES a type hierarchy to leverage the similarities between items in an order, while still allowing for differences.
该模型使用类型继承来利用定制中项目间的相似性，当然照样允许有差别。
This product type hierarchy is defined in a metadata structure and has an associated set of database tables and business services.
这种产品类型层次结构使用元数据结构进行定义，并具有一组相关数据库表和业务服务。
The existing product tables representing the product type hierarchy provided out the box can be extended with additional elements.
要表示现成的产品类型层次结构的现有产品表，可以使用附加的元素进行扩展。
After you have defined the product type hierarchy, you can then define the data you wish to capture for each type in the hierarchy.
定义了产品类型层次结构后，可以继续定义希望为层次结构中的每个类型捕捉的数据。
We discuss the difference between Any and AnyRef when we discuss the Scala type hierarchy in the section called "the Scala type hierarchy".
我们会在“scala类型层级结构”章节中讨论Any和AnyRef的区别。
If your product type hierarchy is relatively flat (only three or four levels deep), then there is less of a concern with database access.
如果产品类型层次结构相对简单(只有3或4层)，那么数据库访问就会简单一些。
We'll discuss Nothing in the section called "the Scala Type Hierarchy" in Chapter 7, the Scala Object System, but its name is suggestive!
我们会在《第7章-Scala对象系统》的“scala类型结构”章节讨论Nothing。但是它的名字本身就解释了自己！
Similarly any new product types you added in the product type hierarchy can be added into the model with a related set of services if required.
类似地，如果必要的话，添加到产品类型层次结构的任何新产品类型都可以添加到一个具有相关服务集合的模型中。
Once the anonymous member's method has been called, flow has been delegated to that method entirely. So you cannot simulate type hierarchy like this.
一旦匿名成员的方法被调用，控制流整个都被委派给了该方法。
For example, if an interface is selected when you invoke the Quick Type Hierarchy, the list displays all the known classes that implement the interface.
举例来说，如果您在调用QuickType Hierarchy时选择了某个接口，则列表将显示已知的所有实现了该接口的类。
The Any type is the root of the Scala type hierarchy (see the section called "the Scala type hierarchy" in Chapter 7, the Scala Object System for more details).
Any类型是scala类型结构的根类型(参见《第7章- Scala对象系统的更多细节》中的“scala类型结构”章节)。
The product type hierarchy defines the types of products you wish to manage. MDM Server provides the product type hierarchy, as shown in Figure 1, out of the box.
产品类型层次结构定义了您希望对之进行管理的产品的类型。
Three new views give users greater insight into the structure of their code, including an Includes Browser, Call Hierarchy view, and a new Type Hierarchy view.
包括IncludesBrowser、CallHierarchyView和新的Type Hierarchy View在内的三个新视图将使用户可以更深入地研究代码结构。
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