为什么这个文件上没有换行符?

我编写了一些代码来比较两个文件，并将它们的公共行写入第三个文件。由于某种原因，包含公共行的第三个文件在一行上写入了所有的公共行。我甚至尝试添加Console.WriteLine(''n');添加一条新线来分隔公共线，但这没有帮助。有什么问题吗?

    //This program will read  files and compares to see if they have a line in common
    //if there is a line in common then it writes than common line to a new file
  static void Main(string[] args)
    {
        int counter = 0;
        string line;
        string sline;
        string[] words;
        string[] samacc = new string[280];

        //first file to compare
        System.IO.StreamReader sfile =
           new System.IO.StreamReader("C:''Desktop''autoit''New folder''userlist.txt");
        while ((sline = sfile.ReadLine()) != null)
        {
            samacc[counter] = sline;
            Console.WriteLine();
            counter++;
        }
        sfile.Close();
        //file to write common lines to.
        System.IO.StreamWriter wfile = new System.IO.StreamWriter("C:''Desktop''autoit''New folder''KenUserList.txt");
        counter = 0;
        //second file to compare
        System.IO.StreamReader file =
           new System.IO.StreamReader("C:''Desktop''autoit''New folder''AllUserHomeDirectories.txt");
        while ((line = file.ReadLine()) != null)
        {
            words = line.Split(''t');
            foreach (string i in samacc)
            {
                if (words[0] == i)
                {
                    foreach (string x in words)
                    {
                        wfile.Write(x);
                        wfile.Write(''t');
                    }
                    Console.WriteLine(''n');
                }
            }
        }
        file.Close();
        wfile.Close();
        // Suspend the screen.
        Console.ReadLine();

    }