Question

我在阅读文件和子文件夹时遇到问题。对于给定的固定源路径E:\\Folder\\test\\test2，我的代码读取正常。
测试中有许多文件夹，如test2，test3，test4等。我想在主文件夹test中提取数据文件。
例如，我想在test中提取文件，所以我想读取测试中包含的所有文件，而不是编写test3，test4和许多代码。我想在另一个驱动器上提取和写入所有文件作为相同的源结构。
，如果源结构与E:\\Folder\\test\\test2类似，那么目标结构应该像C:\\Folder\\test\\test2

有没有办法做到这一点？

这是我的代码，

private void dateTimePicker1_ValueChanged(object sender, EventArgs e)
{
    DateTime dt = dateTimePicker1.Value;
    txtSelectedDate.Text = dt.ToString("yyyyMMdd");
    selectedDate = txtSelectedDate.Text;
}

private void button2_Click(object sender, EventArgs e)
{
    DateTime stdate = Datetimepicker1.value;
    while (stdate <= DateTime.Now)
    {
        txtSelectedDate.Text = stdate.ToString("yyyyMMdd");
        selectedDate = txtSelectedDate.Text;
        string DayBgSpot = "E:\\Folder\\test\\test2";
        string DayBgSpotDestination = "E:\\Folder1";
        int DT = int.Parse(txtSelectedDate.Text);
        FileReader Reader = new FileReader();
        FileReader Reader1 = new FileReader();
        Reader.OpenDirectory(DayBgSpot);
        Reader.ReadNaster();
        string path = DayBgSpotDestination + "\\" + txtSelectedDate.Text + ".txt";
        StreamWriter Strwriter = new StreamWriter(path);
        try
        {
            while (Reader.iMaRecordsLeft > 0)
            {
                string SecName = Reader.sMaSecName;
                string Symbol = Reader.sMaSecSymbol;
                Symbol = prefix + Symbol;
                int abc = 0;

                Reader.OpenSecurityByName(Reader.sMaSecName);
                if (Reader.iSeRecords > 0)
                {
                    while (Reader.iSeRecordsLeft > 0)
                    {
                        Reader.ReadDay();
                        float O = Reader.dSeo;
                        float H = Reader.dSeh;
                        float L = Reader.dSel;
                        float C = Reader.dSec;
                        double V = Reader.dSeV;
                        double OI = Reader.dSrest;
                        string T = Reader.iSeTime.ToString();
                        string D = Reader.iSeDate.ToString();
                        if (int.Parse(D) == DT)
                        {
                            string a = string.Concat(SecName, ",", Symbol, ",", D, ",", T, ",", O, ",", H, ",",  L, ",", C, ",", V, ",", OI);
                            if (SecName != "" && V != 0)
                            {
                                Strwriter.WriteLine(a);
                            }
                        }
                    }
                }
                abc++;
                Reader.ReadNaster();
            }

            Reader.CloseDirectory();
            Strwriter.Close();
            Strwriter.Dispose();
        }
        catch
        {
        }
        stdate = stdate.AddDays (1); // It will get next date till present
    }
}

Answer 1

像

这样的东西

System.IO.DirectoryInfo baseFolder = new DirectoryInfo(@"c:\Folder\test\");
string destinationPath = @"e:\Folder\test\";
System.IO.DirectoryInfo[] subDirs = baseFolder.GetDirectories();
foreach (System.IO.DirectoryInfo dirInfo in subDirs)
{
   string subFolder = dirInfo.Name;
   System.IO.FileInfo[] fileInfos = dirInfo.GetFiles("*.txt");
   foreach (System.IO.FileInfo fileInfo in fileInfos)
   {
      // Do something with the files
      string writePath = destinationPath + subFolder + @"\" + fileInfo.Name;
      // Write
   }
}

Answer 2

如果您使用的是.NET 4.0，则只需一行：

var filepaths = Directory.GetFiles(path: @"C:\", searchPattern: "*pattern*", searchOption: SearchOption.AllDirectories);

显然，根路径和搜索模式与提议的样本不一致，但我的意图应该清楚。

我希望这会有所帮助

如何从文件夹和子文件夹中提取数据文件

2 个答案: