1.修复了一些类的isTerminal没有被初始化的bug

2.修复了一些地方判断下一个Terminal的bug
Signed-off-by: facat@lab.com <facat@lab.com>

testHasttable/topologyrecorder.h

@@ -0,0 +1,25 @@
+#ifndef TOPOLOGYRECORDER_H
+#define TOPOLOGYRECORDER_H
+#include <QVector>
+#include <QHash>
+#include <QString>
+#include <QPair>
+#include "BasicElementInfo.h"
+#include "breaker.h"
+#include "aclinesegment.h"
+#include "nodetoterminal.h"
+#include "terminal.h"
+
+class TopologyRecorder
+{
+public:
+    TopologyRecorder(const QHash<QString,BasicElementInfo *>& elementHT);
+    bool startWithNode(const QString& node);
+private:
+    NodeToTerminal nodeToTerminal;
+    const QHash<QString,BasicElementInfo *>& eleHT;
+    QVector<QPair<QString,QString> > branch;
+    QHash<QString,char> reachedTerminal;
+};
+
+#endif // TOPOLOGYRECORDER_H