Results The new definition of topology is consistent with the general, and based on it, the closed sets, separation and compactness are defined.

• 结果这种貌似离散的非标准定义与一般的拓扑定义是一致的。在此基础上，定义了闭集、分离性及紧性，讨论了闭集、分离性及紧性的一些相关性质。