AbstractDocument
+openDocument()+closeDocument()+run()+doReplace
文档生成构建
run
WorldDocument
ExcelDocument
AbstractModelCalculator
PPTDocument
Xml
+newEmptyXml(rootName:String):IXml+newFileXml(fileName:String):IXml+newStreamXml(stream:InputStream):IXml+newTextXml(text:String):Ixml
<<interface>>IDocument
+run()
