C# File类的操作

            #region File创建文件
            //File.Create(@"C:UsersadminDesktop2.txt");
            //Console.WriteLine("创建成功！");
            //Console.ReadKey();
            #endregion

            #region File删除文件
            //File.Delete(@"C:UsersadminDesktop2.txt");
            //Console.WriteLine("删除成功！");
            //Console.ReadKey();
            #endregion

            #region File读取txt文件
            //byte[] buffer = File.ReadAllBytes(@"C:UsersadminDesktop1.txt");
            //string str = Encoding.UTF8.GetString(buffer);
            //Console.WriteLine(str);
            //Console.ReadKey();
            #endregion

            #region File读取txt文件所有行
            //string[] buffer = File.ReadAllLines(@"C:UsersadminDesktop1.txt");
            //for (int i = 0; i < buffer.Length; i++)
            //{
            //    Console.WriteLine(buffer[i]);
            //}
            //Console.ReadKey();
            #endregion

            #region File写入字符串
            //string str = "我是写入的文本！";
            //byte[] buffer = Encoding.UTF8.GetBytes(str);
            //File.WriteAllBytes(@"C:UsersadminDesktop2.txt",buffer);
            //Console.WriteLine("写入成功！");
            //Console.ReadKey();
            #endregion

            #region File追加字符串
            //string str = "我是追加的字符串！不覆盖原来的文本";
            //File.AppendAllText(@"C:UsersadminDesktop2.txt", str);
            //Console.WriteLine("写入成功！");
            //Console.ReadKey();
            #endregion

            #region File复制
            //File.Copy(@"C:UsersadminDesktop1.txt", @"C:UsersadminDesktop2.txt");
            //Console.WriteLine("复制成功！");
            //Console.ReadKey();
            #endregion