Question

我正在尝试将数据输出到控制台屏幕和文本文件。我有点卡住了，希望有人可以提供帮助。我在Main（）上有一些帮助来解析我的文件，然后用一个Class来指导我，但仍然不确定如何将信息输入到屏幕和文本文件中。我的代码如下。

namespace ConsoleApp1
{

class Program
{
    static void Main(string[] args)
    {        

    }

    void Main()
    {
        var lines = ReadFile();

        lines.ToList().ForEach(Console.WriteLine);
    }

    IEnumerable<Line> ReadFile()
    {
        using (var reader = new StreamReader(File.OpenRead(@"C:List.txt")))
        {
            const string directoryPrefix = " Directory of ";
            Regex splittingRegex = new Regex(@"\s+", RegexOptions.Compiled);
            string directory = null;
            string line;

            while ((line = reader.ReadLine()) != null)
            {
                line = line.TrimEnd();
                if (line.StartsWith(directoryPrefix))
                {
                    directory = line.Substring(directoryPrefix.Length);
                    continue;
                }

                var lineParts = splittingRegex.Split(line, 6);
                yield return new Line { Date = lineParts[0], Time = lineParts[1], Period = lineParts[2], Bytes = lineParts[3], User = lineParts[4], Filename = Path.Combine(directory, lineParts[5]) };
            }
        }
    }

    class Line
    {
        private string date;
        private string time;
        private string period;
        private string bytes;
        private string user;
        private string filename;

        public string Date { get { return date; } set { date = value; } }
        public string Time { get { return time; } set { time = value; } }
        public string Period { get { return period; } set { period = value; } }
        public string Bytes { get { return bytes; } set { bytes = value; } }
        public string User { get { return user; } set { user = value; } }
        public string Filename { get { return filename; } set { filename = value; } }
    }
}

}

Answer 1

只需将Main（）方法更改为：

    private void Main()
    {
        var lines = ReadFile().Select(l => l.ToString()).ToList();

        // The short way, do them after each other
        lines.ForEach(Console.WriteLine);
        File.WriteAllLines(@"C:\Users\Public\TestFolder\WriteLines.txt", lines);
    }

并覆盖Line类中的ToString（）方法。

private class Line
{
    public string Date { get; set; }
    public string Time { get; set; }
    public string Period { get; set; }
    public string Bytes { get; set; }
    public string User { get; set; }
    public string Filename { get; set; }

    public override string ToString()
    {
        // Just an example, you could create an other implementation
        return string.Format("Filename: {0} -  Date: {1}", Filename, Date);
    }
}

Answer 2

输出每一行时，你没有做任何事情。你应该这样做：

lines.ToList().ForEach(l => Console.WriteLine(l.User));

Answer 3

您可以使用此开源项目中的EchoStream：http://www.codeproject.com/Articles/3922/EchoStream-An-Echo-Tee-Stream-for-NET

C＃语言控制台应用程序

3 个答案: