/// <summary>
/// Возвращает текст выражения
/// </summary>
public override string ToText( )
{
return(string.Format("{0}{1}{2}{3}{4}", Expression1.ToText( ), Compiler.GetOperator(Name).Signatures[0],
Expression2.ToText( ), Compiler.GetOperator(Name).Signatures[1], Expression3.ToText( )));
}