关于文件流的写入与读取总结

关于文件流的写入与读取总结

     1、把数据写入输出流中

    新建一个控制台应用程序StreamWrite（记得要引用System.IO名称空间，因为System.IO包含用于在文件中读写数据的类)

其他的代码如下：

    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                FileStream fs = new FileStream(@"E:\Log.doc", FileMode.OpenOrCreate);//创建一个FileStream对象
                StreamWriter sw = new StreamWriter(fs);//使用fs对象来创建一个StreamWrite对象
                sw.WriteLine("hello");//下面的代码都是把数据流写入FileStream中
                sw.WriteLine("It is now {0} and ...", DateTime.Now.ToLongDateString());
                sw.WriteLine(DateTime.Now.ToShortDateString());
                sw.Write("more than that ");
                sw.Write("it is {0}...", true);
                sw.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message.ToString());
                return;
            }
        }
    }

2、读取输入流中的数据

代码如下：

        static void Main(string[] args)
        {
            string strline;
            try
            {
                FileStream fs = new FileStream(@"E:\Log.doc", FileMode.Open);
                StreamReader sr = new StreamReader(fs);
                strline = sr.ReadLine();
                while (strline != null)
                {
                    Console.WriteLine(strline);
                    strline = sr.ReadLine();
                }
                sr.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message.ToString());
                return;
            }
            Console.ReadKey(true);
        }