OpenLayers功能库目前已经非常庞大，大大小小文件已经有二百多个。 下面简单介绍一下各个文件有什么功能。
"OpenLayers/Util.js", //辅助函数
"OpenLayers/BaseTypes.js",
"OpenLayers/BaseTypes/Class.js",
"OpenLayers/BaseTypes/Bounds.js",
"OpenLayers/BaseTypes/Element.js",
"OpenLayers/BaseTypes/LonLat.js",
"OpenLayers/BaseTypes/Pixel.js",
"OpenLayers/BaseTypes/Size.js",
"OpenLayers/Console.js",
"OpenLayers/Tween.js",
"Rico/Corner.js",
"Rico/Color.js",
"OpenLayers/Ajax.js",
"OpenLayers/Events.js",
"OpenLayers/Request.js",
"OpenLayers/Request/XMLHttpRequest.js",
"OpenLayers/Projection.js",
"OpenLayers/Map.js",
"OpenLayers/Layer.js",
"OpenLayers/Icon.js",
"OpenLayers/Marker.js",
"OpenLayers/Marker/Box.js",
"OpenLayers/Popup.js",
"OpenLayers/Tile.js",
"OpenLayers/Tile/Image.js",
"OpenLayers/Tile/Image/IFrame.js",
"OpenLayers/Tile/WFS.js",
"OpenLayers/Layer/Image.js",
"OpenLayers/Layer/SphericalMercator.js",
"OpenLayers/Layer/EventPane.js",
"OpenLayers/Layer/FixedZoomLevels.js",
"OpenLayers/Layer/Google.js",
"OpenLayers/Layer/VirtualEarth.js",
"OpenLayers/Layer/Yahoo.js",
"OpenLayers/Layer/HTTPRequest.js",
"OpenLayers/Layer/Grid.js",
"OpenLayers/Layer/MapGuide.js",
"OpenLayers/Layer/MapServer.js",
"OpenLayers/Layer/MapServer/Untiled.js",
"OpenLayers/Layer/KaMap.js",
"OpenLayers/Layer/KaMapCache.js",
"OpenLayers/Layer/MultiMap.js",
"OpenLayers/Layer/Markers.js",
"OpenLayers/Layer/Text.js",
"OpenLayers/Layer/WorldWind.js",
"OpenLayers/Layer/ArcGIS93Rest.js",
"OpenLayers/Layer/WMS.js",
"OpenLayers/Layer/WMS/Untiled.js",
"OpenLayers/Layer/WMS/Post.js",
"OpenLayers/Layer/ArcIMS.js",
"OpenLayers/Layer/GeoRSS.js",
"OpenLayers/Layer/Boxes.js",
"OpenLayers/Layer/XYZ.js",
"OpenLayers/Layer/TMS.js",
"OpenLayers/Layer/TileCache.js",
"OpenLayers/Layer/Zoomify.js",
"OpenLayers/Popup/Anchored.js",
"OpenLayers/Popup/AnchoredBubble.js",
"OpenLayers/Popup/Framed.js",
"OpenLayers/Popup/FramedCloud.js",
"OpenLayers/Feature.js",
"OpenLayers/Feature/Vector.js",
"OpenLayers/Feature/WFS.js",
"OpenLayers/Handler.js",
"OpenLayers/Handler/Click.js",
"OpenLayers/Handler/Hover.js",
"OpenLayers/Handler/Point.js",
"OpenLayers/Handler/Path.js",
"OpenLayers/Handler/Polygon.js",
"OpenLayers/Handler/Feature.js",
"OpenLayers/Handler/Drag.js",
"OpenLayers/Handler/RegularPolygon.js",
"OpenLayers/Handler/Box.js",
"OpenLayers/Handler/MouseWheel.js",
"OpenLayers/Handler/Keyboard.js",
"OpenLayers/Control.js",
"OpenLayers/Control/Attribution.js",
"OpenLayers/Control/Button.js",
"OpenLayers/Control/ZoomBox.js",
"OpenLayers/Control/ZoomToMaxExtent.js",
"OpenLayers/Control/DragPan.js",
"OpenLayers/Control/Navigation.js",
"OpenLayers/Control/MouseDefaults.js",
"OpenLayers/Control/MousePosition.js",
"OpenLayers/Control/OverviewMap.js",
"OpenLayers/Control/KeyboardDefaults.js",
"OpenLayers/Control/PanZoom.js",
"OpenLayers/Control/PanZoomBar.js",
"OpenLayers/Control/ArgParser.js",
"OpenLayers/Control/Permalink.js",
"OpenLayers/Control/Scale.js",
"OpenLayers/Control/ScaleLine.js",
"OpenLayers/Control/Snapping.js",
"OpenLayers/Control/Split.js",
"OpenLayers/Control/LayerSwitcher.js",
"OpenLayers/Control/DrawFeature.js",
"OpenLayers/Control/DragFeature.js",
"OpenLayers/Control/ModifyFeature.js",
"OpenLayers/Control/Panel.js",
"OpenLayers/Control/SelectFeature.js",
"OpenLayers/Control/NavigationHistory.js",
"OpenLayers/Control/Measure.js",
"OpenLayers/Control/WMSGetFeatureInfo.js",
"OpenLayers/Control/Graticule.js",
"OpenLayers/Control/TransformFeature.js",
"OpenLayers/Control/SLDSelect.js",
"OpenLayers/Geometry.js",
"OpenLayers/Geometry/Rectangle.js",
"OpenLayers/Geometry/Collection.js",
"OpenLayers/Geometry/Point.js",
"OpenLayers/Geometry/MultiPoint.js",
"OpenLayers/Geometry/Curve.js",
"OpenLayers/Geometry/LineString.js",
"OpenLayers/Geometry/LinearRing.js",
"OpenLayers/Geometry/Polygon.js",
"OpenLayers/Geometry/MultiLineString.js",
"OpenLayers/Geometry/MultiPolygon.js",
"OpenLayers/Geometry/Surface.js",
"OpenLayers/Renderer.js",
"OpenLayers/Renderer/Elements.js",
"OpenLayers/Renderer/SVG.js",
"OpenLayers/Renderer/Canvas.js",
"OpenLayers/Renderer/VML.js",
"OpenLayers/Layer/Vector.js",
"OpenLayers/Layer/Vector/RootContainer.js",
"OpenLayers/Strategy.js",
"OpenLayers/Strategy/Fixed.js",
"OpenLayers/Strategy/Cluster.js",
"OpenLayers/Strategy/Paging.js",
"OpenLayers/Strategy/BBOX.js",
"OpenLayers/Strategy/Save.js",
"OpenLayers/Strategy/Refresh.js",
"OpenLayers/Filter.js",
"OpenLayers/Filter/FeatureId.js",
"OpenLayers/Filter/Logical.js",
"OpenLayers/Filter/Comparison.js",
"OpenLayers/Filter/Spatial.js",
"OpenLayers/Protocol.js",
"OpenLayers/Protocol/HTTP.js",
"OpenLayers/Protocol/SQL.js",
"OpenLayers/Protocol/SQL/Gears.js",
"OpenLayers/Protocol/WFS.js",
"OpenLayers/Protocol/WFS/v1.js",
"OpenLayers/Protocol/WFS/v1_0_0.js",
"OpenLayers/Protocol/WFS/v1_1_0.js",
"OpenLayers/Protocol/SOS.js",
"OpenLayers/Protocol/SOS/v1_0_0.js",
"OpenLayers/Layer/PointTrack.js",
"OpenLayers/Layer/GML.js",
"OpenLayers/Style.js",
"OpenLayers/StyleMap.js",
"OpenLayers/Rule.js",
"OpenLayers/Format.js",
"OpenLayers/Format/XML.js",
"OpenLayers/Format/Context.js",
"OpenLayers/Format/ArcXML.js",
"OpenLayers/Format/ArcXML/Features.js",
"OpenLayers/Format/GML.js",
"OpenLayers/Format/GML/Base.js",
"OpenLayers/Format/GML/v2.js",
"OpenLayers/Format/GML/v3.js",
"OpenLayers/Format/Atom.js",
"OpenLayers/Format/KML.js",
"OpenLayers/Format/GeoRSS.js",
"OpenLayers/Format/WFS.js",
"OpenLayers/Format/WFSCapabilities.js",
"OpenLayers/Format/WFSCapabilities/v1.js",
"OpenLayers/Format/WFSCapabilities/v1_0_0.js",
"OpenLayers/Format/WFSCapabilities/v1_1_0.js",
"OpenLayers/Format/WFSDescribeFeatureType.js",
"OpenLayers/Format/WMSDescribeLayer.js",
"OpenLayers/Format/WMSDescribeLayer/v1_1.js",
"OpenLayers/Format/WKT.js",
"OpenLayers/Format/OSM.js",
"OpenLayers/Format/GPX.js",
"OpenLayers/Format/Filter.js",
"OpenLayers/Format/Filter/v1.js",
"OpenLayers/Format/Filter/v1_0_0.js",
"OpenLayers/Format/Filter/v1_1_0.js",
"OpenLayers/Format/SLD.js",
"OpenLayers/Format/SLD/v1.js",
"OpenLayers/Format/SLD/v1_0_0.js",
"OpenLayers/Format/OWSCommon/v1.js",
"OpenLayers/Format/OWSCommon/v1_0_0.js",
"OpenLayers/Format/OWSCommon/v1_1_0.js",
"OpenLayers/Format/CSWGetDomain.js",
"OpenLayers/Format/CSWGetDomain/v2_0_2.js",
"OpenLayers/Format/CSWGetRecords.js",
"OpenLayers/Format/CSWGetRecords/v2_0_2.js",
"OpenLayers/Format/WFST.js",
"OpenLayers/Format/WFST/v1.js",
"OpenLayers/Format/WFST/v1_0_0.js",
"OpenLayers/Format/WFST/v1_1_0.js",
"OpenLayers/Format/Text.js",
"OpenLayers/Format/JSON.js",
"OpenLayers/Format/GeoJSON.js",
"OpenLayers/Format/WMC.js",
"OpenLayers/Format/WMC/v1.js",
"OpenLayers/Format/WMC/v1_0_0.js",
"OpenLayers/Format/WMC/v1_1_0.js",
"OpenLayers/Format/WMSCapabilities.js",
"OpenLayers/Format/WMSCapabilities/v1.js",
"OpenLayers/Format/WMSCapabilities/v1_1.js",
"OpenLayers/Format/WMSCapabilities/v1_1_0.js",
"OpenLayers/Format/WMSCapabilities/v1_1_1.js",
"OpenLayers/Format/WMSCapabilities/v1_3.js",
"OpenLayers/Format/WMSCapabilities/v1_3_0.js",
"OpenLayers/Format/WMSGetFeatureInfo.js",
"OpenLayers/Format/SOSCapabilities.js",
"OpenLayers/Format/SOSCapabilities/v1_0_0.js",
"OpenLayers/Format/SOSGetObservation.js",
"OpenLayers/Format/SOSGetFeatureOfInterest.js",
"OpenLayers/Format/OWSContext.js",
"OpenLayers/Format/OWSContext/v0_3_1.js",
"OpenLayers/Layer/WFS.js",
"OpenLayers/Control/GetFeature.js",
"OpenLayers/Control/MouseToolbar.js",
"OpenLayers/Control/NavToolbar.js",
"OpenLayers/Control/PanPanel.js",
"OpenLayers/Control/Pan.js",
"OpenLayers/Control/ZoomIn.js",
"OpenLayers/Control/ZoomOut.js",
"OpenLayers/Control/ZoomPanel.js",
"OpenLayers/Control/EditingToolbar.js",
"OpenLayers/Lang.js",
"OpenLayers/Lang/en.js"