c#---写文件

        //写文件        public void write()        {            try            {                string path = @"f:\t1.txt";                       //创建并写入(将覆盖已有文件)                if (!File.Exists(path))                {                              using (StreamWriter sw = File.CreateText(path))                    {                        for(int i=0; i<N; i++)                        {                            for(int j=0; j<N; j++)                                sw.Write(G[i, j] + " ");                            sw.WriteLine();                        }                    }                 }            }            catch (Exception e)             {                 Console.WriteLine("The process failed: {0}", e.ToString());            }        }