See the appendix for a more in-depth description of the class attribute.
关于class属性更深入的讨论请参阅附录。
The following sections present an in-depth description of the concepts behind continuous physics. It is not necessary to understand this part in order to use the engine at a basic level.
下面的章节会深度描述连续物理背后的知识，简单使用的话没有必要理解这一部分。
The following sections present an in-depth description of the concepts behind continuous physics. It is not necessary to understand this part in order to use the engine at a basic level.
下面的章节会深度描述连续物理背后的知识，简单使用的话没有必要理解这一部分。
应用推荐