两结构相同DataTable 合并

        public DataTable MergeTable(DataTable orgDt,DataTable newDt)
        {
            object[] obj = new object[newDt .Columns.Count];    
            for (int i = 0; i < orgDt.Rows.Count; i++)    
            {    
                orgDt.Rows[i].ItemArray.CopyTo(obj,0);    
                newDt.Rows.Add(obj);    
            } 
            return newDt;
        }