/// <summary>
/// 根据组Id提供的路径信息，遍历树查找组节点
/// </summary>
/// <param name="absolutePath">组全路径，等于null或为空字符返回根组</param>
/// <returns>返回组对象，未找到返回null</returns>
public VariableGroup FindGroupByPath(string absolutePath)
{
return(VariableRepository.FindGroupByPath(absolutePath));
}