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Editor ed = Autodesk..ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
Autodesk.AutoCAD.DatabaseServices.TypedValue[] tv = new TypedValue[1];
tv[0]=new TypedValue(0,"POLYLINE");
Autodesk.AutoCAD.EditorInput.SelectionFilter sf = new SelectionFilter(tv);
 romptSelectionOptions opts =new PromptSelectionOptions();
opts.AllowDuplicates = true;
opts.MessageForAdding="请选择一条等高线:";
 romptSelectionResult res = ed.GetSelection(opts,sf);
if(res.Status!=PromptStatus.OK)
return;
Autodesk.AutoCAD.EditorInput.SelectionSet ss = res.Value;
ObjectId[] oids = ss.GetObjectIds();
for(int i=0;i
以上代码想实现只选择多段线，但是却选不到多段线。是什么问题呢？？
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置顶卡
