When you create a component, you turn SketchUp geometry into something special. 创建组件时，可以将SketchUp几何体转换为特殊的东西。
A basic component becomes reusable and separate from other geometry. 基本组件变得可重用，并与其他几何体分离。
PRO If you’re a SketchUp Pro user, you can add attributes to create dynamic components. 如果您是SketchUp Pro用户，则可以添加属性以创建动态组件。Users can then configure certain aspects of the component, or the component can add steps to staircases or pickets to fences as you scale the dynamic component.然后，用户可以配置组件的某些方面，或者在缩放动态组件时，组件可以向楼梯添加台阶或向围栏添加尖桩。
After you try a few basic dynamic components to get a feel for how they work, you find specific examples that walk through the steps to building complex dynamic components and references and examples for the building blocks of dynamic components: attributes, functions, and operators.在您尝试了一些基本的动态组件以了解它们的工作原理后，您会发现具体的示例，这些示例将逐步构建复杂的动态组件，并为动态组件的构建块（属性、函数和运算符）提供引用和示例。