关注我的动态namespace _26.输入输出流 { internal class Program { static void Main(string[] args) { //写入文件流 FileStream outStream new FileStream(1.txt, FileMode.Create); StreamWriter outWriter new StreamWriter(outStream); outWriter.WriteLine(hello, world!!!); outWriter.Close(); outStream.Close(); //读取文件流 FileStream inStream new FileStream(1.txt, FileMode.Open); StreamReader inReader new StreamReader(inStream); var str inReader.ReadLine(); Console.WriteLine(str); inReader.Close(); inStream.Close(); } } }