单项选择题
A.public void notationDecl() B.public void characters() C.public void ignorableWhitespace() D.public void processingInstruction()
A.public void startElement() B.public void startDocument() C.public void startPrefixMapping() D.public voic setDocumentLocator()
A.public void warning() B.public void error() C.public void fatalError() D.public void skippedEntity()