diff --git a/testHasttable/cimexporter.cpp b/testHasttable/cimexporter.cpp
index 4ad2552..fff9089 100644
--- a/testHasttable/cimexporter.cpp
+++ b/testHasttable/cimexporter.cpp
@@ -10,6 +10,7 @@ void CIMExporter::add(const QPair<QString,QString>& fromTo,Line* line)
     lineStru.line=line;
     lineStru.fromID=fromTo.first;
     lineStru.toID=fromTo.second;
+    lineStru.id=line->ac->getID();
     this->line.push_back(lineStru);
 
 }
@@ -19,6 +20,7 @@ void CIMExporter::add(const QPair<QString,QString>& fromTo,Switch* sw)
     switchStru.sw=sw;
     switchStru.fromID=fromTo.first;
     switchStru.toID=fromTo.second;
+    switchStru.id=sw->id;
     this->sw.push_back(switchStru);
 }
 void CIMExporter::add(const QPair<QString,QString>& fromTo,Transformer* tf)
diff --git a/testHasttable/element/branch.cpp b/testHasttable/element/branch.cpp
index b296529..9d1a733 100644
--- a/testHasttable/element/branch.cpp
+++ b/testHasttable/element/branch.cpp
@@ -1,5 +1,5 @@
 #include "branch.h"
 
-Branch::Branch(const QString& from, const QString& to, QObject *parent):from(from),to(to)
+Branch::Branch(const QString& from, const QString& to, QObject *parent):from(from),to(to),QObject(parent)
 {
 }
diff --git a/testHasttable/element/commontype.h b/testHasttable/element/commontype.h
index 53382dc..6d80c82 100644
--- a/testHasttable/element/commontype.h
+++ b/testHasttable/element/commontype.h
@@ -1,12 +1,17 @@
 #ifndef COMMONTYPE
 #define COMMONTYPE
 
+#include <QString>
+#include "line.h"
+#include "switch.h"
+#include "transformer.h"
 struct BranchStruc
 {
     QString fromID;
     QString toID;
     int fromNum;
     int toNum;
+    QString id;//后面有用的
 };
 struct LineStru:public BranchStruc
 {
diff --git a/testHasttable/element/line.cpp b/testHasttable/element/line.cpp
index cd4b51a..5e38537 100644
--- a/testHasttable/element/line.cpp
+++ b/testHasttable/element/line.cpp
@@ -1,6 +1,6 @@
 #include "line.h"
 
-Line::Line(const QPair<QString,QString>& fromTo, ACLineSegment* ac, QObject *parent):Branch(fromTo.first,fromTo.second)
+Line::Line(const QPair<QString,QString>& fromTo, ACLineSegment* ac, QObject *parent):Branch(fromTo.first,fromTo.second,parent)
 {
     this->ratio=1;
     this->ac=ac;
diff --git a/testHasttable/element/line.h b/testHasttable/element/line.h
index 327758f..b335dcd 100644
--- a/testHasttable/element/line.h
+++ b/testHasttable/element/line.h
@@ -9,10 +9,11 @@ class Line:public Branch
 public:
     Line(const QPair<QString, QString> &fromTo, ACLineSegment* ac,QObject* parent=0);
     double length;
+    ACLineSegment *ac;
 protected:
     virtual void extract();
 private:
-    ACLineSegment *ac;
+
 };
 
 #endif // LINE_H
diff --git a/testHasttable/element/switch.cpp b/testHasttable/element/switch.cpp
index 947db4a..82634cc 100644
--- a/testHasttable/element/switch.cpp
+++ b/testHasttable/element/switch.cpp
@@ -1,6 +1,6 @@
 #include "switch.h"
 
-Switch::Switch(const QPair<QString,QString>& fromTo, QObject *parent):Branch(fromTo.first,fromTo.second)
+Switch::Switch(const QPair<QString,QString>& fromTo, const QString &id, QObject *parent):Branch(fromTo.first,fromTo.second,parent),id(id)
 {
     this->extract();
 }
diff --git a/testHasttable/element/switch.h b/testHasttable/element/switch.h
index 2e93e91..cbb17c1 100644
--- a/testHasttable/element/switch.h
+++ b/testHasttable/element/switch.h
@@ -6,10 +6,12 @@
 class Switch:public Branch
 {
 public:
-    Switch(const QPair<QString, QString> &fromTo,QObject *parent=0);
+    Switch(const QPair<QString, QString> &fromTo,const QString& id,QObject *parent=0);
+    QString id;
 protected:
     virtual void extract();
 
+
 };
 
 #endif // SWITCH_H
diff --git a/testHasttable/element/transformer.cpp b/testHasttable/element/transformer.cpp
index c7b348d..671a211 100644
--- a/testHasttable/element/transformer.cpp
+++ b/testHasttable/element/transformer.cpp
@@ -1,7 +1,7 @@
 #include "transformer.h"
 
 
-Transformer::Transformer(const QPair<QString,QString>& fromTo, PowerTransformer* tf, QObject *parent):Branch(fromTo.first,fromTo.second)
+Transformer::Transformer(const QPair<QString,QString>& fromTo, PowerTransformer* tf, QObject *parent):Branch(fromTo.first,fromTo.second,parent)
 {
     this->ratio=1;
     this->tf=tf;
diff --git a/testHasttable/elementreduction.cpp b/testHasttable/elementreduction.cpp
index 28ec3ee..af45e1e 100644
--- a/testHasttable/elementreduction.cpp
+++ b/testHasttable/elementreduction.cpp
@@ -1,6 +1,6 @@
 #include "elementreduction.h"
 
-ElementReduction::ElementReduction()
+ElementReduction::ElementReduction(const QList<Branch *> &branchList):branchList(branchList)
 {
 
 }
@@ -10,3 +10,13 @@ ElementReduction::~ElementReduction()
 
 }
 
+void ElementReduction::doIt()
+{
+    //先重新编号
+    int add=0;
+    foreach(Branch *v,this->branchList)
+    {
+        v->id=add++;
+    }
+}
+
diff --git a/testHasttable/elementreduction.h b/testHasttable/elementreduction.h
index 3c38c72..37bb098 100644
--- a/testHasttable/elementreduction.h
+++ b/testHasttable/elementreduction.h
@@ -1,12 +1,17 @@
 #ifndef ELEMENTREDUCTION_H
 #define ELEMENTREDUCTION_H
 
+#include <QList>
+#include "element/commontype.h"
 //把电阻等于0的元件都去掉
 class ElementReduction
 {
 public:
-    ElementReduction();
+    explicit ElementReduction(const QList<Branch*>& branchList);
+    void doIt();
     ~ElementReduction();
+private:
+    const QList<Branch*>& branchList;
 };
 
 #endif // ELEMENTREDUCTION_H
diff --git a/testHasttable/topologyrecorder.cpp b/testHasttable/topologyrecorder.cpp
index 529a6ac..6318cc6 100644
--- a/testHasttable/topologyrecorder.cpp
+++ b/testHasttable/topologyrecorder.cpp
@@ -284,11 +284,11 @@ bool TopologyRecorder::startWithNode(const QString& node)
                 this->cimExporter.add(fromTo,static_cast<Line *>(branch));
                 break;
                 case TopologyRecorder::Type::BREAKER:
-                branch=new Switch(fromTo,this);
+                branch=new Switch(fromTo,foundEle->getID(),this);
                 this->cimExporter.add(fromTo,static_cast<Switch *>(branch));
                 break;
                 case TopologyRecorder::Type::DISCONNECTOR:
-                branch=new Switch(fromTo,this);
+                branch=new Switch(fromTo,foundEle->getID(),this);
                 this->cimExporter.add(fromTo,static_cast<Switch *>(branch));
                 break;
                 case TopologyRecorder::Type::TF: