int k=line.indexOf('\t');
if(k<0)continue;
String s1=line.substring(0,k);
String s2=line.substring(k+1);
Node old_node=old_tree.findNode(bIsInvert?s2:s1);
Node new_node=new_tree.findNode(bIsInvert?s1:s2);
if(old_node!=null&&new_node!=null){
map.m_table_old2new.put(old_node, new_node);
map.m_table_new2old.put(new_node,old_node);
} else {
if(old_node==null&&new_node==null){