public void Read(string path)
        {
            StreamReader sr = new StreamReader(path,Encoding.Default);
            String line;
            while ((line = sr.ReadLine()) != null) 
            {
                Console.WriteLine(line.ToString());
            }
        }

2、寫文件

        public void Write(string path)
        {
            FileStream fs = new FileStream(path, FileMode.Create);
            StreamWriter sw = new StreamWriter(fs);
            //開始寫入
            sw.Write("Hello World!!!!");
            //清空緩沖區
            sw.Flush();
            //關閉流
            sw.Close();
            fs.Close();
        }
 

C# 讀寫文件