要建模继承，可以利用由uml建模面板提供的一般化关系，它是从继承类到基础类而绘制出来的。
To model inheritance, use the generalization relationship provided by the UML modeling palette, which is drawn from the inherited class to the base class.
系统掌握装配图的绘制和阅读的一般方法和步骤。
Systematically master general methods and steps of plotting and reading assembly drawings.
当绘制角色时，我一般使用标准笔刷，绘制纹理和背景时使用保存的自定义笔刷。
When painting the figure I normally use the standard brushes and save my custom brushes for textures and for backgrounds.
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