public List <string> Types; //常量数组，保存所有Feature的类型名以筛选有效的Feature
public FileClass(string fil) //FileClass类初始化函数
{
skets = new List <newSketch>();
fileName = fil;
swApp = ConnectToSolidWorks();
swApp.OpenDoc(fil, (int)swDocumentTypes_e.swDocPART);
feas = new List <newFeature>();
Types = new List <string>();
Types.Add("BaseBody");
Types.Add("Blend");
Types.Add("BlendCut");
Types.Add("Boss");
Types.Add("BossThin");
Types.Add("Cut");
Types.Add("CutThin");
Types.Add("Extrusion");
Types.Add("NetBlend");
Types.Add("RevCut");
Types.Add("Revolution");
Types.Add("RevolutionThin");
Types.Add("Sweep");
Types.Add("SweepCut");
}
