说明： 一个我曾经在工程中用过的xml库，非常合适需要在工程中，利用xml文件来保存数据，或者组织数据结构的同行用。简单易懂，对于那些没有太多网络方面知识的人。 (one I had in engineering used xml basement, in a very suitable project, xml document use to preserve data, or data structure of the organization using peer. Simple to understand, for those who do not have too much knowledge network of people.)
