“正确”异步实现

Question

如果下面的代码适用于异步进程，我需要一些意见。此代码仅重新格式化文本。 如果此实施不正确或需要一些改进，请告诉我。

static void Main(string[] args)
{
    Task.Factory.StartNew(() => ReadCharacter("File 1.txt"));
    Task.Factory.StartNew(() => ReadCharacter("File 2.txt"));

    Console.WriteLine("Main Task");            
    Console.ReadLine();
}

static void ReadCharacter(string inputFile)
{
    string result;
    using (StreamReader sr = new StreamReader(inputFile))
    {
        var sw = new StreamWriter(string.Format("C:\\Out--{0}",inputFile));
        Console.WriteLine("Opening file : {0}", inputFile.ToString());
        while (sr.EndOfStream == false)
        {
            result = sr.ReadLine();
            sw.WriteLine(string.Format("{0} --> {1}",
                                       result,Task.CurrentId.ToString()));
        } 
        Console.WriteLine("Finish {0}", inputFile);
        sr.Close(); sw.Close();
    }
}