为软件开发人员提供一个简单易用的工具包，以方便的在目标系统中实现全文检索的功能，或者是以此为基础建立起完整的全文检索引擎。-For software developers to provide an easy to use toolkit to facilitate the realization of the target system in the full-text search functions, or as a basis for establishing a complete fu