用类处理线路阻抗数据。

Signed-off-by: facat@lab.com <facat@lab.com>

testHasttable/aclinesegment.h

@@ -8,12 +8,14 @@ public:
     virtual bool parse(QXmlStreamReader &reader);
     QString getTerminalA();
     QString getTerminalB();
+    double getLength();
     QString getNamingDescription();
 protected:
     QString terminalA;
     QString terminalB;
     QString containsOfSubstation;
     QString namingDescription;
+    double conductorLength;
     virtual bool derivedParse(QXmlStreamReader &reader);
 private:
     bool isTerminalA;