组件实现和专用组件类型。

Component implementation and specialized component types.

youdao

可以有专用组件，会话变量等。

Can have private components, session variables, etc.

youdao

如果以后的需求超出了这些组件提供的功能，那么可以创建包含这些组件的功能的专用组件。

If your later needs exceed the abilities that these components expose, then you can create specialized components that subsume the functionality in these.

youdao