内容提取器，从规定内容的文本中提取出特定的部分-Content extractor extracts from the text of a specific portion of the predetermined content

参考手册必须大于多少个字多少个字字字多少个20字多少个20字多少个20字(POIDocument This holds the common functionality for all POI Document classes. POIOLE2TextExtractor Common Parent for OLE2 based Text Extractors of POI Documents, such as .doc, .xls You will typically find the im