类分层结构
- java.lang.Object
- java.awt.Component (implements java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable)
- java.awt.Container
- javax.swing.JComponent (implements java.io.Serializable)
- com.hg.xdoc.XDoc
- com.hg.xdoc.XDocService
注释类型分层结构