删除数组中的元素

  public static string[] CutString()
        {
            string[] cut = { "12","34","12","442","1"};
            string[] ins = { "34","442"};
            if (cut.Length <= ins.Length)
            {
                return null;
            }
            List<string> result = cut.ToList();
            for (int i = 0; i < ins.Length; i++)
            {
                if (Array.IndexOf(cut, ins[i]) > -1)
                {
                    result.Remove(ins[i]);
                }
            }
         
            return result.ToArray();
        }