C# write text file

.// Compose a string that consists of three lines. string lines = "First line.\r\nSecond line.\r\nThird line."; // Write the string to a file. System.IO.StreamWriter file = new System.IO.StreamWriter("c:\\test.txt"); file.WriteLine(lines); //기존 파일 끝에 추가 System.IO.StreamWriter file = new System.IO.StreamWriter("c:\\test.txt", true); file.Close();