3、hatcanbeusedbyotherinformationintegrationsystems.Thispaperpresentsasimplewebinformationextractionmodel,discussesthetechnologyofwrapperinductionbasedonthemodelanddescribesautomaticgenerationprototypesystemofwrapper.Keywordsinformationextractionwrapperinductionautomaticgenerationprototypesystem 引言 I