该源码用于创建树形属性表，它是对传统属性表的一种扩展，它的关键在于从CProperSheet派生属性表类CTreePropSheet，然后对派生类进行结构方面的调整-The source code used to create the tree attribute table, which is an extension of the traditional attribute table, which is the key attribute table class CTreePropShee