网络组合而非继承 网络释义 1. 组合而非继承 · 优先使用组合而非继承(Favour Composition Over Inheritance)。重用-发布等价原则(Reuse-Release Equivalence Principl… www.cnblogs.com|基于9个网页
1.1 The Inheritance Problem ‘Instances’ of a property are objects instantiating that property e.g. I am an instance of the property Philosopher and an electron is an instance of Charge. Mereological nominalists endorse: Properties are instance fusions: Every property is a fusion of its instances...
which is why it doesn't do inheritance (COM is based on interfaces). Create a class module in VB6, and look at its Instancing property. Would you like PublicNotCreatable