扩展（Extension）是Eclipse中一个关键的机制，plug-in利用扩展向Eclipse平台添加新功能。Eclipse平台提供了一些扩展点，可以使用下列扩展点来扩展平台基础结构的功能：
Platform runtimeorg.eclipse.core.contenttype.contentTypes org.eclipse.core.runtime.adapters org.eclipse.core.runtime.applications org.eclipse.core.runtime.contentTypes org.eclipse.core.runtime.preferences org.eclipse.core.runtime.products org.eclipse.equinox.preferences.preferences
Workspaceorg.eclipse.core.resources.builders org.eclipse.core.resources.fileModificationValidator org.eclipse.core.resources.markers org.eclipse.core.resources.moveDeleteHook org.eclipse.core.resources.natures org.eclipse.core.resources.refreshProviders org.eclipse.core.resources.teamHook org.eclipse.core.filesystem.filesystems
Platform textorg.eclipse.core.filebuffers.annotationModelCreation org.eclipse.core.filebuffers.documentCreation org.eclipse.core.filebuffers.documentSetup org.eclipse.ui.editors.annotationTypes org.eclipse.ui.editors.documentProviders org.eclipse.ui.editors.markerAnnotationSpecification org.eclipse.ui.editors.markerUpdaters org.eclipse.ui.editors.templates org.eclipse.ui.workbench.texteditor.quickDiffReferenceProvider org.eclipse.ui.workbench.texteditor.spellingEngine
Workbenchorg.eclipse.ui.acceleratorConfigurations org.eclipse.ui.acceleratorScopes org.eclipse.ui.acceleratorSets org.eclipse.ui.actionDefinitions org.eclipse.ui.actionSetPartAssociations org.eclipse.ui.actionSets org.eclipse.ui.activities org.eclipse.ui.activitySupport org.eclipse.ui.bindings org.eclipse.ui.browser.browsers org.eclipse.ui.browserSupport org.eclipse.ui.commands org.eclipse.ui.commandImages org.eclipse.ui.contexts org.eclipse.ui.decorators org.eclipse.ui.dropActions org.eclipse.ui.editorActions org.eclipse.ui.editors org.eclipse.ui.elementFactories org.eclipse.ui.encodings org.eclipse.ui.exportWizards org.eclipse.ui.fontDefinitions org.eclipse.ui.handlers org.eclipse.ui.helpSupport org.eclipse.ui.ide.filesystemSupport org.eclipse.ui.ide.markerHelp org.eclipse.ui.ide.markerImageProviders org.eclipse.ui.ide.markerResolution org.eclipse.ui.ide.markerSupport org.eclipse.ui.navigator.linkHelper org.eclipse.ui.navigator.navigatorContent org.eclipse.ui.navigator.viewer org.eclipse.ui.ide.projectNatureImages org.eclipse.ui.ide.resourceFilters org.eclipse.ui.importWizards org.eclipse.ui.intro org.eclipse.ui.keywords org.eclipse.ui.menus org.eclipse.ui.newWizards org.eclipse.ui.perspectiveExtensions org.eclipse.ui.perspectives org.eclipse.ui.popupMenus org.eclipse.ui.preferencePages org.eclipse.ui.preferenceTransfer org.eclipse.ui.presentationFactories org.eclipse.ui.propertyPages org.eclipse.ui.startup org.eclipse.ui.systemSummarySections org.eclipse.ui.themes org.eclipse.ui.viewActions org.eclipse.ui.views org.eclipse.ui.views.properties.tabbed.propertyContributor.html org.eclipse.ui.views.properties.tabbed.propertySections.html org.eclipse.ui.views.properties.tabbed.propertyTabs.html org.eclipse.ui.workingSets
