public override string _generateCode()
{
string result = string.Empty;
if (LeftChild != null)
{
result += LeftChild.GenerateCode();
}
_model.ImportVaribleName = LeftChild.GetExportVaribleName();
for (int i = 0; i < _model.TotalVaribleCount; i++)
{
_model.AddVaribleName(Tree.AssignVaribleName());
}
result += _model.GenerateCode();
return(result);
}