Storage mode of the dynamic ordered tree

In the storage of the ordered tree, for two weaknesses (the XML document is large and the space-efficient LOUDS bit-string can only describe static trees), the space-efficient-tree package format based on the LOUDS bit-string is proposed. This package format can not only store ordered trees space-efficiently, but also achieve the dynamic operations of ordered trees. In the end, a variety of common operations of dynamic trees are designed. And it indicates that space-efficient storage of dynamic ordered trees can be achieved by this structure.