文件中用WriteLine追加内容的两种方法

           if (!Directory.Exists("C:\\testll"))

            {

                Directory.CreateDirectory("C:\\testll");

            }

            string LogAddress = "C:\\testll\\Test_Log.log";

            string LogAddress2 = "C:\\testll\\Test_Log2.log";

            //测试

            FileStream fs = new FileStream(LogAddress, FileMode.OpenOrCreate);

            using(StreamWriter swr = new StreamWriter(fs))

            {

                swr.WriteLine("Test1");

                swr.WriteLine("Test1");

                swr.WriteLine("Test1");

                swr.WriteLine("Test1");

                swr.WriteLine();

            }

            using(StreamWriter sw = new StreamWriter(LogAddress2, true))

            {

                sw.WriteLine("Test2");

                sw.WriteLine("Test2");

                sw.WriteLine("Test2");

                sw.WriteLine();

            }