删除数组中的重复项

/// <summary>
        /// 删除数组中的重复项
        /// </summary>
        /// <param name="values"></param>
        /// <returns></returns>
        public static string[] RemoveDup(string[] values)
        {
            List<string> list = new List<string>();
            for (int i = 0; i < values.Length; i++)//遍历数组成员
            {
                if (!list.Contains(values[i]))
                {
                    list.Add(values[i]);
                };
            }
            return list.ToArray();
        }