将特定行保存到新的文本文件

Question

我忙于处理结构如下所示的文本文件：
这是连续字符串中的降雨量数据，日期后每5个字符表示一个月中的某一天。

0005880 W 1926 9-7777-7777-7777-7777-7777-7777-7777-7777-7777 117 130 64-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777 
0005880 W 192610-7777-7777-7777-7777-7777-7777-7777-7777-7777 23-7777-7777-7777-7777 3-7777 226 462 71-7777-7777 157 76 15-7777-7777-7777-7777-7777-7777-7777 
0005880 W 192611 3 20-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777 61 142-7777-7777-7777 8-7777-7777-7777-7777 
0005880 W 192612-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777 132-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777-7777 

年和月表示在字符串中的（10,4）和（14,2）位置。 我的问题是，有一些情况下，下一行不是要遵循的月份。我写了一些代码，在下面显示的一个月的数据丢失的地方添加了一行。

public void findGapsToolStripMenuItem_Click(object sender, EventArgs e) 
    { 


     TabPage tp = new TabPage(); 
     RichTextBox rtb = new RichTextBox(); 
     rtb.Dock = DockStyle.Fill; 
     rtb.Multiline = true; 
     rtb.AcceptsTab = true; 
     rtb.WordWrap = false; 





     Stream myStream; 
     OpenFileDialog openFileDialog1 = new OpenFileDialog(); 

     if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK) 
     { 
      if ((myStream = openFileDialog1.OpenFile()) != null) 
      { 


       tp.Controls.Add(rtb); 
       tabControl1.TabPages.Add(tp); 


       string strfilename = openFileDialog1.FileName; 
       string[] lines = File.ReadAllLines(strfilename); 
       string[] pathArr = strfilename.Split('\\'); 
       string[] fileArr = pathArr.Last().Split(); 
       string filen = fileArr.Last().ToString(); 



       tp.Text = filen; 

       int pyear = 0; 
       int pmon = 0; 
       int imon = 0; 
       int iyear = 0; 


       foreach (string line in lines) 
       { 
        string missing = "-9999"; 
        string year = line.Substring(10, 4); 
        string mon = line.Substring(14, 2); 
        iyear = Convert.ToInt32(year); 
        imon = Convert.ToInt32(mon); 


        if (pyear == 0) 
        { 
         pyear = iyear; 
         pmon = imon; 

         rtb.AppendText(line + "\n"); 

        } 
        else 
        { 
         int pt = pyear * 12 + pmon; 
         int t = iyear * 12 + imon; 
         if ((pt + 1) == t) 
         { 

          rtb.AppendText(line + "\n"); 
         } 
         else 
         { 

          rtb.AppendText("Missing Months =" + (t - pt) + "\n"); 

         } 

         if (line.Contains(missing)) 
         { 
          rtb.AppendText("Missing Days" + "\n"); 


         } 


         pyear = iyear; 
         pmon = imon; 
        } 

        rtb.SelectAll(); 
        rtb.SelectionAlignment = HorizontalAlignment.Left; 
        rtb.SelectionFont = new Font("Consolas", 10); 








       } 

      } 

     } 


    } 

我的问题是，是否有失踪一个月或一天命名失踪一个月或前一天的开始日期的日期文本文件之前导出所有行的方式。例如，1926.9.1926.10.txt。然后在下一个缺失的月份或一天之前继续完成下一部分数据的文件。所以基本上就是以多个文本文档结尾，这些文档包含几年或几个月的数据，但没有空白我也想它自动创建，所有的文本文件将被创建的站号是第14个字符（即0005880 W）的文件夹。

更新

public void findGapsToolStripMenuItem_Click(object sender, EventArgs e) 
    { 


     TabPage tp = new TabPage(); 
     RichTextBox rtb = new RichTextBox(); 
     rtb.Dock = DockStyle.Fill; 
     rtb.Multiline = true; 
     rtb.AcceptsTab = true; 
     rtb.WordWrap = false; 





     Stream myStream; 
     OpenFileDialog openFileDialog1 = new OpenFileDialog(); 

     if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK) 
     { 
      if ((myStream = openFileDialog1.OpenFile()) != null) 
      { 


       tp.Controls.Add(rtb); 
       tabControl1.TabPages.Add(tp); 


       string strfilename = openFileDialog1.FileName; 
       string[] lines = File.ReadAllLines(strfilename); 
       string[] pathArr = strfilename.Split('\\'); 
       string[] fileArr = pathArr.Last().Split(); 
       string filen = fileArr.Last().ToString(); 
       string pat = @"C:\Test\" + filen; 
       System.IO.Directory.CreateDirectory(pat); 
       int i; 





       tp.Text = filen; 

       int pyear = 0; 
       int pmon = 0; 
       int imon = 0; 
       int iyear = 0; 
       int j = 1; 


       foreach (string line in lines) 
       { 
        using (StreamWriter sw = new StreamWriter(@"C:\Test\" + filen+".txt")) 
        { 



         string missing = "-9999"; 
         string year = line.Substring(10, 4); 
         string mon = line.Substring(14, 2); 
         iyear = Convert.ToInt32(year); 
         imon = Convert.ToInt32(mon); 
         string filepath = @"C:\Test\" + year + "." + mon+".txt"; 

         if (pyear == 0) 
         { 

          File.CreateText(filepath); 
          pyear = iyear; 
          pmon = imon; 

          rtb.AppendText(line + "\n"); 

          sw.WriteLine(line); 


         } 
         else 
         { 

          File.CreateText(filepath); 
          int pt = pyear * 12 + pmon; 
          int t = iyear * 12 + imon; 
          if ((pt + 1) == t) 
          { 

           rtb.AppendText(line + "\n"); 
           sw.WriteLine(line); 


          } 
          else 
          { 

           string path = pat + "\\" + year + "." + mon + ".txt"; 
           File.CreateText(path); 

           rtb.AppendText("Missing Months =" + (t - pt) + "\n"); 

          } 

          if (line.Contains(missing)) 
          { 

           string path = pat + "\\" + year + "." + mon + ".txt"; 
           File.CreateText(path); 
           rtb.AppendText("Missing Days" + "\n"); 


          } 


          pyear = iyear; 
          pmon = imon; 


         } 

         rtb.SelectAll(); 
         rtb.SelectionAlignment = HorizontalAlignment.Left; 
         rtb.SelectionFont = new Font("Consolas", 10); 




        } 
       } 







      } 


     } 
    } 

Answer 1

你

http://msdn.microsoft.com/en-us/library/system.io.file.aspx

该类包含用于创建文件以及写出ARB方法：可以用有System.IO.File类的各种方法创建文件将文字行写成一行。

您可以使用该System.IO.Directory类的方法目录：

http://msdn.microsoft.com/en-us/library/system.io.directory.aspx

更新：这里是一些伪

startdate = null 
foreach(line in the input file) 
{ 
    currentdate = date on this line in the input file 

    if(startdate == null) 
    { 
     // We are at the start of a new block of dates 
     startdate = currentdate   
     add this line to a list (in memory) 
    } 
    else if(currentdate == lastdate in the list + 1 month) 
    { 
     // This date is consecutive 
     add this line to a list (in memory) 
    } 
    else 
    { 
     // We have a gap in the data 
     write out all data in the list to file named <startdate>-<lastdate in list> 
     startdate = currentdate 
     add this line to the list (which we've just emptied) 
    } 
} 
write out the last file 

这只是非常粗略的和准备，但应该指出您需要考虑编写此代码的方式。有一件事要明确，如果你想用一个日期块的结束日期来命名文件，那么在找到该块的最后一行之前，你不能创建该文件，所以你需要将行存储在内存中直到找到日期间的差距或输入文件的末尾。