获得FeatureClass的坐标系ISpatialReference

        /// <summary>
        /// 获得坐标系统by yl [email protected]
        /// </summary>
        /// <param name="pFeatureClass"></param>
        /// <returns></returns>
        public static ISpatialReference getSpatialReference(IFeatureClass pFeatureClass)
        {
            IGeoDataset pGeoDataset = pFeatureClass as IGeoDataset;
            return pGeoDataset.SpatialReference;
 
        }