public PMBSCClass[] GetSubPMBSCClasses(Guid enterpriseUID, Guid bscClassUID)
public PMBSCClass[] GetRootPMBSCClasses(Guid enterpriseUID)

        public XmlDocument GetBscXmlDocment(Guid enterpriseUID)
        {
            XmlDocument doc = new XmlDocument();

            XmlDeclaration declare = doc.CreateXmlDeclaration("1.0", "UTF-8", "yes");//创建一个声明
            doc.InsertBefore(declare, doc.DocumentElement);//把声明添加到文档元素的顶部

            XmlElement root = doc.CreateElement("Nodes");//添加根节点
            doc.AppendChild(root);

            PMBSCClass[] rootBscs = GetRootPMBSCClasses(enterpriseUID);
            if(rootBscs != null && rootBscs.Length > 0)
            {
                MakeDoc(doc, root, rootBscs);
            }

            
            
            return doc;
        }
        private void MakeDoc(XmlDocument doc, XmlElement rootElem, PMBSCClass[] bscs)
        {
            foreach(PMBSCClass bsc in bscs)
            {
                //创建子节点
                XmlElement elem = doc.CreateElement("ItemNode");
                rootElem.AppendChild(elem);

                //创建新节点的Text属性
                XmlAttribute textAtt = doc.CreateAttribute("Text");
                textAtt.Value = bsc.Name;
                elem.SetAttributeNode(textAtt);

                //创建新节点的Value属性
                XmlAttribute valueAtt = doc.CreateAttribute("Value");
                valueAtt.Value = bsc.BSCClassUID.ToString();
                elem.SetAttributeNode(valueAtt);

                PMBSCClass[] subBscs = GetSubPMBSCClasses(bsc.EnterpriseUID, bsc.BSCClassUID);
                if(subBscs != null && subBscs.Length > 0)
                {
                    //如果当前元素有子元素,则递归生成字的节子点。
                    MakeDoc(doc, elem, subBscs);
                }
            }
        }