diff --git a/testHasttable/cimexporter.cpp b/testHasttable/cimexporter.cpp
index 9d70039..b9a85a2 100644
--- a/testHasttable/cimexporter.cpp
+++ b/testHasttable/cimexporter.cpp
@@ -85,6 +85,7 @@ void CIMExporter::exportTo(const QString& path)
             writer<<l.fromNum<<"\t";
             writer<<l.toNum<<"\t";
             writer<<"type"<<"\t";
+            writer<<l.id<<"\t";
             writer<<l.line->length<<"\r\n";
         }
         //输出刀闸
@@ -99,6 +100,7 @@ void CIMExporter::exportTo(const QString& path)
             writer<<ite->fromNum<<"\t";
             writer<<ite->toNum<<"\t";
             writer<<"type"<<"\t";
+            writer<<ite->id<<"\t";
             writer<<0<<"\r\n";
         }
         //输出负荷
@@ -147,6 +149,7 @@ void CIMExporter::exportTo(const QString& path)
                     writer<<ite->fromNum<<"\t";
                     writer<<ite->toNum<<"\t";
                     writer<<"type"<<"\t";
+                    writer<<ite->id<<"\t";
                     writer<<tf->getMVA()<<"\r\n";
                     break;
                 }
@@ -178,6 +181,12 @@ void CIMExporter::idToNumber(QList<T> &s)//把所有元件的标识进行编号
         ite++
         )
     {
+        if(ite->dispose)
+        {
+            std::cout<<ite->id.toStdString()<<" dispose"<<std::endl;
+            continue;
+
+        }
         T _t=*ite;
         _t.fromNum=this->numberIt(_t.fromID);
         _t.toNum=this->numberIt(_t.toID);
@@ -195,6 +204,7 @@ int CIMExporter::numberIt(const QString& id)
     {
         int n=this->number.keys().length()+1;
         this->number[id]=n;
+        std::cout<<id.toStdString()<<" "<<n<<std::endl;
         return n;
 
     }
diff --git a/testHasttable/elementreduction.cpp b/testHasttable/elementreduction.cpp
index 6ee967d..76f4c32 100644
--- a/testHasttable/elementreduction.cpp
+++ b/testHasttable/elementreduction.cpp
@@ -29,6 +29,7 @@ void ElementReduction::doIt()
     this->buildTree(element,root,linkage,idToBranch);
     this->visited.remove(this->branchList.at(2)->id);
     this->buildTree2(element,root,linkage,idToBranch);
+        this->merge(element,idToBranch);
     QFile file("1.xml");
     if(file.open(QFile::WriteOnly))
     {
@@ -48,11 +49,87 @@ void ElementReduction::doIt()
     }
     //合并
 
+    //从新给连接关系编号
 
 }
 
-void ElementReduction::merge()
+
+//void ElementReduction::re_establishConnection(QDomElement &element,QHash<QString,BranchStruc *>& idToBranch)
+//{
+//    QDomNodeList list=element.childNodes();
+//    for(int i=0;i<list.length();i++)
+//    {
+//        QDomNode node=list.at(i);
+//        QString id;
+//        id=node.nodeName();
+//        BranchStruc *branch=idToBranch[id];
+//        if(branch->isZeroBranch)
+//        {
+//            branch->dispose=true;
+//            QDomNodeList child=node.childNodes();
+//            for(int j=0;j<child.length();j++)
+//            {
+//                QDomNode c=child.at(j);
+//                element.appendChild(node.removeChild(c));
+//            }
+//        }
+//        this->merge((QDomElement &)node,idToBranch);
+
+//    }
+//}
+
+
+void ElementReduction::merge(QDomElement &element,QHash<QString,BranchStruc *>& idToBranch)
 {
+    QString parentID=idToBranch[element.tagName()]->id;
+    QStringList sep=parentID.split('-');
+//    QString fromID=sep.at(0)+sep.at(1);
+    QString toID=sep.at(1)+sep.at(0);
+    idToBranch[element.tagName()]->toID=toID;
+    element.setAttribute("toID",toID);
+    //顺便编号
+    //采用广度优先
+    bool merged=true;
+    while(merged)
+    {
+        merged=false;
+        QDomNodeList list=element.childNodes();
+        int length=list.length();
+        for(int i=0;i<length;i++)
+        {
+            QDomNode nod=list.at(i);
+            if(nod.isNull())
+            {
+                std::cout<<"isNULL"<<std::endl;
+            }
+            QDomElement &node=(QDomElement &)nod;
+            QString id;
+            id=node.nodeName();
+            BranchStruc *branch=idToBranch[id];
+            branch->fromID=toID;
+            node.setAttribute("fromID",toID);
+            if(branch->isZeroBranch)
+            {
+                branch->dispose=true;
+                while(node.childNodes().length()>0)
+                {
+                    std::cout<<"append "<<node.firstChild().nodeName().toStdString()<<" to "<<element.tagName().toStdString()<<std::endl;
+                    element.appendChild(node.removeChild(node.firstChild()));
+                }
+                element.removeChild(node);
+                merged=true;
+                break;
+            }
+        }
+    }
+    QDomNodeList list=element.childNodes();
+    for(int i=0;i<list.length();i++)
+    {
+        QDomNode nod=list.at(i);
+        QDomElement &node=(QDomElement &)nod;
+        this->merge((QDomElement &)node,idToBranch);
+    }
+
 
 }
 
@@ -80,6 +157,7 @@ void ElementReduction::buildTree(QDomElement &element,QDomDocument &root,QHash<Q
         }
 //        std::cout<<"add "<<n->id.toStdString()<<std::endl;
         QDomElement newEle=root.createElement(n->id);
+        std::cout<<"create "<<n->id.toStdString()<<std::endl;
         element.appendChild(newEle);
         this->buildTree(newEle,root,linkage,idToBranch);
     }
@@ -107,6 +185,7 @@ void ElementReduction::buildTree2(QDomElement &element,QDomDocument &root,QHash<
         }
 //        std::cout<<"add "<<n->id.toStdString()<<std::endl;
         QDomElement newEle=root.createElement(n->id);
+//        std::cout<<"create "<<n->id.toStdString()<<std::endl;
         element.appendChild(newEle);
         this->buildTree2(newEle,root,linkage,idToBranch);
     }
diff --git a/testHasttable/elementreduction.h b/testHasttable/elementreduction.h
index d445249..67c5232 100644
--- a/testHasttable/elementreduction.h
+++ b/testHasttable/elementreduction.h
@@ -7,6 +7,9 @@
 #include <QVector>
 #include <QDomElement>
 #include <QDomDocument>
+#include <QDomNodeList>
+#include <QDomNode>
+#include <QStringList>
 #include "element/commontype.h"
 //把电阻等于0的元件都去掉
 class ElementReduction
@@ -16,6 +19,7 @@ public:
     void doIt();
     ~ElementReduction();
 private:
+    void merge(QDomElement &element, QHash<QString,BranchStruc *>& idToBranch);
     void buildTree(QDomElement &element, QDomDocument &root, QHash<QString,QVector<BranchStruc *> >& linkage, QHash<QString,BranchStruc *>& idToBranch);
     void buildTree2(QDomElement &element, QDomDocument &root, QHash<QString,QVector<BranchStruc *> >& linkage, QHash<QString,BranchStruc *>& idToBranch);
     void visit(BranchStruc* branch, QHash<QString, QVector<BranchStruc *> > &linkage);