/// <summary>
 /// 获取指定用户id的信用信息
 /// </summary>
 /// <param name="userid">用户id</param>
 /// <returns></returns>
 public static GoodsusercreditinfoCollection GetUserCreditList(int userid)
 {
     return(DTO.GetGoodsUserCreditList(DbProvider.GetInstance().GetGoodsUserCreditByUid(userid)));
 }