/// <summary>
/// 获取商品属性名称-值集合
/// </summary>
/// <param name="properties"></param>
/// <returns></returns>
public IEnumerable <ItemPropertyPair> GetItemPropertyPairs(string properties)
{
if (string.IsNullOrEmpty(properties))
{
return(null);
}
var result = _dal.GetItemPropertyPairs(properties);
return(result);
}