• ArcEngine动态追踪


    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Text;
    using System.Windows.Forms;
    
    using ESRI.ArcGIS.Carto;
    using ESRI.ArcGIS.Controls;
    using ESRI.ArcGIS.Display;
    using ESRI.ArcGIS.Geometry;
    using ESRI.ArcGIS.MapControl;
    using ESRI.ArcGIS.ToolbarControl;
    using ESRI.ArcGIS.SystemUI;
    using ESRI.ArcGIS.Output;
    using ESRI.ArcGIS.esriSystem;
    using ESRI.ArcGIS.Geodatabase;
    using ESRI.ArcGIS.DataSourcesGDB;
    namespace VehicleMove
    {
        public partial class frmMain : Form
        {
            double dx = 116.315691;
            double dy = 39.991964;
            IActiveView pactiveview;
            public frmMain()
            {
                InitializeComponent();
                //
                timer1.Enabled = false;
                timer2.Enabled = false;
                timer3.Enabled = false;
                timer4.Enabled = false;
                timer5.Enabled = false;
                //
                this.axToolbarControl1.SetBuddyControl(this.axMapControl1);
                pactiveview = this.axMapControl1.ActiveView;
            }
            //方法1:缺点:有拖尾,除非每次刷新,但是刷新会出现不停闪烁   
            private void timer1_Tick(object sender, EventArgs e)
            {
                dx = dx + 0.001;
                dy = dy - 0.0001;
                MoveCar();
            }
            private void MoveCar()
            {
                //得到当前活动范围
    
                IActiveView pActiveView = axMapControl1.ActiveView;
                //开始画笔 
                pActiveView.ScreenDisplay.StartDrawing(pActiveView.ScreenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
                IPoint ppoint;
                IGeometry pgeo;
                IPictureMarkerSymbol psymbol = new PictureMarkerSymbolClass();
                IRgbColor prgbcolor = new RgbColorClass();
                prgbcolor.Red = 0;
                prgbcolor.Green = 0;
                prgbcolor.Blue = 0;
    
                psymbol.BitmapTransparencyColor  = prgbcolor;
                psymbol.CreateMarkerSymbolFromFile(esriIPictureType.esriIPictureBitmap,@"E:layers2.bmp");
                psymbol.Size = 15;
                psymbol.Angle = 270;
    
                //ISimpleMarkerSymbol psimplesymbol = new SimpleMarkerSymbolClass();
                //psimplesymbol.Size = 10;
                //psimplesymbol.Color = (IColor)prgbcolor;
    
                ppoint = new PointClass();
                ppoint.PutCoords(dx,dy);
                pgeo = ppoint;
    
                pActiveView.ScreenDisplay.SetSymbol((ISymbol)psymbol);
                pActiveView.ScreenDisplay.DrawPoint(ppoint);
                //结束画笔
                pActiveView.ScreenDisplay.UpdateWindow();
                pActiveView.ScreenDisplay.FinishDrawing();
                //System.Object obj = psymbol;
                //this.axMapControl1.DrawShape(pgeo, ref obj);
             
                //this.axMapControl1.CenterAt(ppoint);
                IEnvelope penv = this.axMapControl1.Extent;
                penv.CenterAt(ppoint);
                this.axMapControl1.Extent = penv;
            }
            private void button1_Click(object sender, EventArgs e)
            {
                this.timer1.Enabled = true;
                this.timer1.Interval = 1000;   
            }
            //方法2:用element实现移动
            private IElement pelement, pelement1, pelement2;
            //第一种,文字图元,需要找到能够代表汽车的字体,并用上去才好
            private void DrawTextElement(IPoint pPoint)
            {
                IGraphicsContainer pGraphicsContainer;
                pGraphicsContainer = (IGraphicsContainer)(this.axMapControl1.ActiveView);
    
                pGraphicsContainer.DeleteAllElements();
    
                ITextElement ptextelement = new TextElementClass();
                ptextelement.Text = "0";
                pelement = (IElement)ptextelement;
                ptextelement.ScaleText = true;
    
                pelement.Geometry = pPoint;
                IFormattedTextSymbol ptextsymbol = new TextSymbolClass();
                ////下面三句是文字显示的背景框,去掉就单独显示文字了
                //ICallout pcallout = new BalloonCalloutClass();
                //ptextsymbol.Background = (ITextBackground)pcallout;
                //pcallout.AnchorPoint = pPoint;
                ptextsymbol.Font.Size = 15;
                ptextelement.Symbol = ptextsymbol;
    
                pGraphicsContainer.AddElement(pelement, 0);
                pelement.Activate(this.axMapControl1.ActiveView.ScreenDisplay);
              
                pactiveview.PartialRefresh(esriViewDrawPhase.esriViewGraphics, pelement, null);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextelement);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextsymbol);
                return ;
            }
            private void MoveTextElement(IPoint pPoint)
            {
                ////如果有文字背景框,需要把背景框的锚点设置好
                //ITextElement ptextelement = (ITextElement)pelement;
                //ITextSymbol ptextsym =  ptextelement.Symbol;
    
                //IFormattedTextSymbol ptextsymbol = (IFormattedTextSymbol)ptextsym;
                //ICallout pcallout = (ICallout)(ptextsymbol.Background);
                //pcallout.AnchorPoint = pPoint;
                
    
                pelement.Geometry = pPoint;
                IGraphicsContainer pGraphicsContainer;
                pGraphicsContainer = (IGraphicsContainer)(this.axMapControl1.ActiveView);
                pGraphicsContainer.UpdateElement(pelement);
                this.axMapControl1.CenterAt(pPoint);
               // pactiveview.PartialRefresh(esriViewDrawPhase.esriViewGraphics, pelement, null);
                //pelement.Activate(this.axMapControl1.ActiveView.ScreenDisplay);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextelement);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextsymbol);
                return ;
            }
            private void timer2_Tick(object sender, EventArgs e)
            {
                dx = dx + 0.001;
                dy = dy - 0.0001;
                IPoint pp = new PointClass();
                pp.PutCoords(dx, dy);
                MoveTextElement(pp);
            }
            private void button2_Click(object sender, EventArgs e)
            {   
                IPoint pp = new PointClass();
                pp.PutCoords(dx, dy);
                DrawTextElement(pp);
                timer2.Enabled = true;
                timer2.Interval = 1000;
            }
            //第二种,位图图片的图元:ppictureelement
            private void DrawPictureElement(IPoint pPoint)
            {
                IGraphicsContainer pGraphicsContainer;
                pGraphicsContainer = (IGraphicsContainer)(this.axMapControl1.ActiveView);
                pGraphicsContainer.Reset();
                //pGraphicsContainer.DeleteAllElements();
    
                IPictureElement ppictureelement = new BmpPictureElementClass();
                ppictureelement.ImportPictureFromFile(@"e:layers1.bmp");
                ppictureelement.MaintainAspectRatio = false;
    
    
                pelement1 = (IElement)ppictureelement;
                //IEnvelope pEnv = new EnvelopeClass();
                //pEnv.PutCoords(pPoint.X - 10, pPoint.Y - 10, pPoint.X + 60, pPoint.Y + 40);
                //pEle.Geometry = (IGeometry)pEnv;
                ITopologicalOperator pTopo = pPoint as ITopologicalOperator;
                IGeometry pBuffer = pTopo.Buffer(0.005);//建立4个地图单位的缓冲区
                IGeometry pGeometry = pBuffer.Envelope;//确定鼠标周围隐藏的选择框
    
                pelement1.Geometry = pGeometry;
    
                pGraphicsContainer.AddElement(pelement1, 0);
                pelement.Activate(this.axMapControl1.ActiveView.ScreenDisplay);
    
                pactiveview.PartialRefresh(esriViewDrawPhase.esriViewGraphics, pelement1, null);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextelement);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextsymbol);
                return;
            }
            private void MovePictureElement(IPoint pPoint)
            {
                ITopologicalOperator pTopo = pPoint as ITopologicalOperator;
                IGeometry pBuffer = pTopo.Buffer(0.002);//建立4个地图单位的缓冲区
                IGeometry pGeometry = pBuffer.Envelope;//确定鼠标周围隐藏的选择
                pelement1.Geometry = pGeometry;
    
                IGraphicsContainer pGraphicsContainer;
                pGraphicsContainer = (IGraphicsContainer)(this.axMapControl1.ActiveView);
                pGraphicsContainer.UpdateElement(pelement1);
                this.axMapControl1.CenterAt(pPoint);
                // pactiveview.PartialRefresh(esriViewDrawPhase.esriViewGraphics, pelement, null);
                //pelement.Activate(this.axMapControl1.ActiveView.ScreenDisplay);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextelement);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextsymbol);
                return;
            }
            private void timer3_Tick(object sender, EventArgs e)
            {
                dx = dx + 0.001;
                dy = dy - 0.0001;
                IPoint pp = new PointClass();
                pp.PutCoords(dx, dy);
                MovePictureElement(pp);
            }
            private void button3_Click(object sender, EventArgs e)
            {
                IPoint pp = new PointClass();
                pp.PutCoords(dx, dy);
                DrawPictureElement(pp);
                timer3.Enabled = true;
                timer3.Interval = 1000;
            }
            //第三种,点图元的形式,pmarkerelement
            private void DrawMarkerElement(IPoint pPoint)
            {
                IGraphicsContainer pGraphicsContainer;
                pGraphicsContainer = (IGraphicsContainer)(this.axMapControl1.ActiveView);
                pGraphicsContainer.Reset();
                //pGraphicsContainer.DeleteAllElements();
    
                IMarkerElement pmarkerelement = new MarkerElementClass();
                pelement2 = (IElement)pmarkerelement;
                IGeometry pGeometry = pPoint;
                pelement2.Geometry = pGeometry;
    
                IPictureMarkerSymbol ppicmarksymbol = new PictureMarkerSymbolClass();
                //IRgbColor prgbcolor = new RgbColorClass();
                //prgbcolor.Red = 255;
                //prgbcolor.Green = 255;
                //prgbcolor.Blue = 255;
                //ppicmarksymbol.BitmapTransparencyColor = prgbcolor;
                ppicmarksymbol.CreateMarkerSymbolFromFile(esriIPictureType.esriIPictureBitmap,@"e:layers2.bmp");
                ppicmarksymbol.Size = 20;
                //0-360度,逆时针转动
                ppicmarksymbol.Angle = 270;
                pmarkerelement.Symbol = ppicmarksymbol;
    
    
                pGraphicsContainer.AddElement(pelement2, 0);
                pelement2.Activate(this.axMapControl1.ActiveView.ScreenDisplay);
    
                pactiveview.PartialRefresh(esriViewDrawPhase.esriViewGraphics, pelement2, null);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextelement);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextsymbol);
                return;
            }
            private void MoveMarkerElement(IPoint pPoint)
            {
    
                pelement2.Geometry = pPoint;
    
                IGraphicsContainer pGraphicsContainer;
                pGraphicsContainer = (IGraphicsContainer)(this.axMapControl1.ActiveView);
                pGraphicsContainer.UpdateElement(pelement2);
                this.axMapControl1.CenterAt(pPoint);
                // pactiveview.PartialRefresh(esriViewDrawPhase.esriViewGraphics, pelement, null);
                //pelement.Activate(this.axMapControl1.ActiveView.ScreenDisplay);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextelement);
                //System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ptextsymbol);
                return;
            }
            private void timer4_Tick(object sender, EventArgs e)
            {
                dx = dx + 0.001;
                dy = dy - 0.0001;
                IPoint pp = new PointClass();
                pp.PutCoords(dx, dy);
                MoveMarkerElement(pp);
            }
    
            private void button4_Click(object sender, EventArgs e)
            {
                IPoint pp = new PointClass();
                pp.PutCoords(dx, dy);
                DrawMarkerElement(pp);
                timer4.Enabled = true;
                timer4.Interval = 1000;
            }
            //方法3,用内存图层,画点的方法
            //创建内存图层,比创建实体图层,效率要快要几倍:已经过测试,查找路径后者花费4500毫秒,内存图层花费780毫秒。
            //可独立运行程序(不知道为什么,有问题。),创建空图层,默认为北京54的经纬度坐标系,itype=0,表示点,1:线,2:面
            private IFeature pthisfeature;
            public IFeatureWorkspace CreateEmptyLayerInmemeory(string slayername, ESRI.ArcGIS.Geometry.ISpatialReference pspatialreference, int itype)
            {
                //打开工作空间
                const string strShapeFieldName = "SHAPE";
                IWorkspaceFactory pWSF = new InMemoryWorkspaceFactoryClass();
                ESRI.ArcGIS.Geodatabase.IWorkspaceName pworkspacename = pWSF.Create("", "MyWorkspace", null, 0);
                ESRI.ArcGIS.esriSystem.IName pname = (IName)pworkspacename;
                //ESRI.ArcGIS.Geodatabase.IWorkspace pworkspace =(IWorkspace)(pname.Open());
                IFeatureWorkspace pfeatureworkspace = (IFeatureWorkspace)(pname.Open());//;(IFeatureWorkspace)pworkspace;
    
                try
                {
                    //IFeatureLayer player = null;
                    //IFeatureClass pclass = null;
                    //为esriFieldTypeGeometry类型的字段创建几何定义,包括类型和空间参照 
                    IGeometryDef pGeoDef = new GeometryDefClass();     //The geometry definition for the field if IsGeometry is TRUE.
                    IGeometryDefEdit pGeoDefEdit = (IGeometryDefEdit)pGeoDef;
                    if (itype == 0)
                    {
                        pGeoDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPoint;
                    }
                    else
                    {
                        if (itype == 1)
                        {
                            pGeoDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPolyline;
                        }
                        else
                        {
                            pGeoDefEdit.GeometryType_2 = esriGeometryType.esriGeometryPolygon;
                        }
                    }
                    if (pspatialreference != null)
                    {
                        pspatialreference.SetDomain(-180, 180, -90, 90);
                        pGeoDefEdit.SpatialReference_2 = pspatialreference;
                    }
                    else
                    {
                        //pGeoDefEdit.SpatialReference_2 = new UnknownCoordinateSystemClass();
                        ISpatialReferenceFactory3 pspatialRefFac = new SpatialReferenceEnvironmentClass();
                        ISpatialReference pspatialRef = pspatialRefFac.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);//esriSRGeoCS_Beijing1954
                        pspatialRef.SetDomain(-180, 180, -90, 90);
                        pGeoDefEdit.SpatialReference_2 = pspatialRef;
                    }
                    //设置字段集
                    IFields pFields = new FieldsClass();
                    IFieldsEdit pFieldsEdit = (IFieldsEdit)pFields;
                    //设置字段
                    IField pField = new FieldClass();
                    IFieldEdit pFieldEdit = (IFieldEdit)pField;
                    //for (int i = 0; i < PropertyFields.FieldCount; i++)//输入PropertyFields
                    //{
                    //    pFieldsEdit.AddField(PropertyFields.get_Field(i));
                    //}
                    //创建类型为几何类型的字段0
                    pFieldEdit.Name_2 = strShapeFieldName;
                    pFieldEdit.Type_2 = esriFieldType.esriFieldTypeGeometry;//esriFieldTypeGeometry;
                    pFieldEdit.GeometryDef_2 = pGeoDef;
                    pFieldsEdit.AddField(pField);
                    //添加其他的字段1:nodeid,2:x,3:y
                    if (itype == 0)
                    {
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "ID";
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
                        pFieldsEdit.AddField(pField);
    
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "X";
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeDouble;
                        pFieldEdit.Precision_2 = 10;//数值长度
                        pFieldEdit.Scale_2 = 6;//小数点后保留位数
                        pFieldsEdit.AddField(pField);
    
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "Y";
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeDouble;
                        pFieldEdit.Precision_2 = 10;//数值长度
                        pFieldEdit.Scale_2 = 6;//小数点后保留位数
                        pFieldsEdit.AddField(pField);
    
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "NAME";
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
                        pFieldEdit.Length_2 = 30;
                        pFieldsEdit.AddField(pField);
                        //添加标记字段,0表示既是起点也是终点,1表示只作起点,2表示只作终点
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "flag";
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
                        pFieldsEdit.AddField(pField);
                    }
                    else
                    {
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "ID";
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
                        pFieldsEdit.AddField(pField);
    
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "name";
                        pFieldEdit.Length_2 = 50;
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
                        pFieldsEdit.AddField(pField);
    
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "firstnode";
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
                        pFieldsEdit.AddField(pField);
    
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "endnode";
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
                        pFieldsEdit.AddField(pField);
    
                        pField = new FieldClass();
                        pFieldEdit = (IFieldEdit)pField;
                        pFieldEdit.Name_2 = "shunxu";
                        pFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
                        pFieldsEdit.AddField(pField);
                    }
                    //创建shapefile
                    IFeatureClass pfclass = pfeatureworkspace.CreateFeatureClass(slayername, pFields, null, null, esriFeatureType.esriFTSimple, strShapeFieldName, "");//C#里 null 取代VB里的Nothing
                    IDataset pdataset = (IDataset)pfclass;
                    pdataset.BrowseName = slayername;
                    //player = new FeatureLayerClass();
                    //player.Name = slayername;
                    //player.FeatureClass = pfclass;
                }
                catch (System.Exception ex)
                {
    
                }
    
                return pfeatureworkspace;
            }
            IFeatureClass pvehicleclass;
            IFeatureLayer pvehiclelayer;
            private void CreateVehicleFeature()
            {
                IFeatureWorkspace pvehicleworkspace = CreateEmptyLayerInmemeory("vehicle", null, 0);
                pvehicleclass= pvehicleworkspace.OpenFeatureClass("vehicle");
                pvehiclelayer = new FeatureLayerClass();
                pvehiclelayer.FeatureClass = pvehicleclass;
               // IFeature pfeature;
                IDataset pdataset = (IDataset)pvehiclelayer;
                IWorkspaceEdit pworkspaceedit = (IWorkspaceEdit)(pdataset.Workspace);
                pworkspaceedit.StartEditing(true);
                pworkspaceedit.StartEditOperation();
                pthisfeature = pvehicleclass.CreateFeature();
                IPoint ppoint = new PointClass();
                ppoint.PutCoords(dx,dy);
                pthisfeature.Shape = (IGeometry)ppoint;
                pthisfeature.Store();
                pworkspaceedit.StopEditOperation();
                pworkspaceedit.StopEditing(true);
                //add
                PointRender(pvehiclelayer);
                this.axMapControl1.AddLayer(pvehiclelayer);
            }
            public void PointRender(IFeatureLayer player)
            {
                IGeoFeatureLayer pgeolayer = (IGeoFeatureLayer)player;
                IFeatureRenderer pfeaturerender = pgeolayer.Renderer;
                IFeatureClass pfeatureclass = player.FeatureClass;
                ISimpleRenderer psimplerender = new SimpleRendererClass();
                psimplerender.Description = "简单渲染";
                psimplerender.Label = "ID";
    
                //ISimpleMarkerSymbol pMarkerSymbol;
                //ISymbol pSymbol;
                //IRgbColor pRgbColor;
                //pMarkerSymbol = new SimpleMarkerSymbol();
                //pMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle;//esriSimpleMarkerStyle.esriSMSCircle;
                //pMarkerSymbol.Size = 8;
                //IRgbColor poutcolor = new RgbColorClass();
                //poutcolor.RGB = System.Drawing.Color.FromArgb(0, 0, 0).ToArgb();
                //pMarkerSymbol.OutlineColor = poutcolor;
                //pMarkerSymbol.OutlineSize = 1;
                //pMarkerSymbol.Outline = true;
                //pRgbColor = new RgbColor();
                //pRgbColor.RGB = System.Drawing.Color.FromArgb(0, 255, 0).ToArgb();
                //pMarkerSymbol.Color = pRgbColor;
                //pSymbol = (ISymbol)pMarkerSymbol;
                //pSymbol.ROP2 = esriRasterOpCode.esriROPCopyPen;//esriROPNotXOrPen;
                IPictureMarkerSymbol ppicmarksymbol = new PictureMarkerSymbolClass();
                ppicmarksymbol.CreateMarkerSymbolFromFile(esriIPictureType.esriIPictureBitmap, @"e:layers2.bmp");
                ppicmarksymbol.Size = 20;
                //0-360度,逆时针转动
                ppicmarksymbol.Angle = 270;
    
                psimplerender.Symbol = (ISymbol)ppicmarksymbol;
                pgeolayer.Renderer = (IFeatureRenderer)psimplerender;
                pactiveview.PartialRefresh(esriViewDrawPhase.esriViewGraphics, player, null);
            }
            private void UpdateVehicleLoc(double dx,double dy)
            {
                IFeatureCursor pfeaturecursor = pvehicleclass.Update(null, false);
                pthisfeature = pfeaturecursor.NextFeature();
                if (pthisfeature != null)
                {
                    IDataset pdataset = (IDataset)pvehiclelayer;
                    IWorkspaceEdit pworkspaceedit = (IWorkspaceEdit)(pdataset.Workspace);
                    pworkspaceedit.StartEditing(true);
                    pworkspaceedit.StartEditOperation();
                    IPoint ppoint = new PointClass();
                    ppoint.PutCoords(dx, dy);
                    pthisfeature.Shape = (IGeometry)ppoint;
                    pthisfeature.Store();
                    pworkspaceedit.StopEditOperation();
                    pworkspaceedit.StopEditing(true);
                    this.axMapControl1.CenterAt(ppoint);
                }
                
            }
    
            private void timer5_Tick(object sender, EventArgs e)
            {
                dx = dx + 0.001;
                dy = dy - 0.0001;
                UpdateVehicleLoc(dx, dy);
            }
    
            private void button5_Click(object sender, EventArgs e)
            {
                CreateVehicleFeature();
                timer5.Enabled = true;
                timer5.Interval = 1000;
            }
        }
    }

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  • 原文地址:https://www.cnblogs.com/dengshiwei/p/4258672.html
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