c# 文件的读写

    读文件：

StreamReader sr = new StreamReader(FileName, Encoding.Default);
                string content = "";
                content = sr.ReadLine();

                while (content != null)
                {
                    //操作逻辑
                     ....
                     ....
                    content = sr.ReadLine();
                }
                sr.Close();

 

   写文件：

            string path = @"路径list_key.txt";

            FileStream fs1 = new FileStream(path, FileMode.Create, FileAccess.Write);
           //创建写入文件 
            StreamWriter sw1 = new StreamWriter(fs1, Encoding.Default);
            sw1.AutoFlush = true;

           // for (int i = 0; i < strFirstList.Count; i++)
           // {
               // sw1.Write(strFirstList[i]);
               // sw1.Write(" ");
               // sw1.WriteLine(strSecList[i]);
            // }


            fs1.Close();