C# 读取txt文本的内容

        public static void Read()
        {
            StreamReader sr = new StreamReader("D:\\test.txt", Encoding.GetEncoding("utf-8"));
            String line;
            while ((line = sr.ReadLine()) != null)
            {
                Console.WriteLine(line.ToString());
            }
            Console.ReadKey();
        }

        public static void Read1()
        {
            try
            {
                byte[] byData = new byte[100];
                char[] charData = new char[1000];

                FileStream file = new FileStream("D:\\test.txt", FileMode.Open);
                file.Seek(0, SeekOrigin.Begin);
                file.Read(byData, 0, 100); //byData传进来的字节数组,用以接受FileStream对象中的数据,第2个参数是字节数组中开始写入数据的位置,它通常是0,表示从数组的开端文件中向数组写数据,最后一个参数规定从文件读多少字符.
                Decoder d = Encoding.UTF8.GetDecoder();
                d.GetChars(byData, 0, byData.Length, charData, 0);
                Console.WriteLine(charData);
                Console.ReadKey();
                file.Close();
            }
            catch (IOException e)
            {
                Console.WriteLine(e.ToString());
                Console.ReadKey();
            }
        }