将多个文本文件附加到单个文件中并重命名 [英] Append multiple text files into single file and rename it

问题描述

你好我在一个地方有多个文本文件，它们就像下面这个名字：



A_L_PRTD_021345.txt，A_L_PRTD_432124，就像这样..



我想将它们合并为单个文件，并希望将单个文件重命名为L_PRTD_Currentdate> .txt



怎么能有可能吗？请与我分享一些做这个的鳕鱼

解决方案

使用System.IO.StreamReader / StreamWriter读取/写入文本文件。



例如...

 使用 System.IO; 
 
 DirectoryInfo di =  new  DirectoryInfo（ <包含目录的路径>）; 
 FileInfo [] files = di.GetFiles（）; 
 
  string  data =   ; 
 
  foreach （FileInfo fi  in  files）
 {
  if （fi.Name.ToUpper（）。StartsWith（  A_L_PRTD））
 {
 StreamReader rd =  new  StreamReader（fi.FullName）; 
 data + = rd.ReadToEnd（）; 
 rd.Close（）; 
 rd.Dispose（）; 
  //  可选...  
 File.Delete（fi.FullName） ; 
} 
} 
 
 StreamWriter wr =  new  StreamWriter（ string .Format(  L_PRTD_ {0} .txt，DateTime.Now.ToString（< span class =code-string>  ddMMyyyy）））; 
 wr.Write（data）; 
 wr.Close（）; 
 wr.Dispose（）; 

试试这样..

  string  path =   d：//文件//; 
  //   string [] fileNames = {A_L_PRTD_432124.txt，A_L_PRTD_021345.txt};  
  string  fileNameStartsWIth =   A_L_PRTD_ ; 
  string  [] fileNames = Directory 
 .GetFiles（path，  * .txt，SearchOption.AllDirectories）
 .Select（f = >  Path.GetFileName（ f））。其中（k = >  k.StartsWith（fileNameStartsWIth））。ToArray（）; 
 
  string  finalFile =   L_PRTD _ + DateTime.Now.ToString（  ddMMMyyyy）+  。txt; 
  string  contentSeperator = Environment.NewLine +   -------------------------------------------------- --- + Environment.NewLine; 
  foreach （字符串文件 in  fileNames）
 {
  string  content = File.ReadAllText（path + file）+ contentSeperator; 
 File.AppendAllText（path + finalFile，content）; 
} 

参考：

文件.ReadAllText [ ^ ]



File.AppendText [< a href =http://msdn.microsoft.com/en-us/library/system.io.file.appendtext(v=vs.110).aspx\"target =_ blanktitle =New Window> ^ ]

试试这个

 File.AppendAllText（路径，内容）; 

Hello I have multiple text files in one location and they are like the name below :

A_L_PRTD_021345.txt , A_L_PRTD_432124 , like this ..

I want to merge them into single file and want to Rename the single file as L_PRTD_Currentdate>.txt

How can It be possible ? Kindly share me some cod of doing this

解决方案

Use System.IO.StreamReader/StreamWriter to read/write the text files.

For example...

using System.IO;

DirectoryInfo di = new DirectoryInfo("<path to containing directory>");
FileInfo[] files = di.GetFiles();

string data = "";

foreach (FileInfo fi in files)
{
    if (fi.Name.ToUpper().StartsWith("A_L_PRTD"))
    {
        StreamReader rd = new StreamReader(fi.FullName);
        data += rd.ReadToEnd();
        rd.Close();
        rd.Dispose();
        //Optionally...
        File.Delete(fi.FullName);
    }
}

StreamWriter wr = new StreamWriter(string.Format("L_PRTD_{0}.txt", DateTime.Now.ToString("ddMMyyyy")));
wr.Write(data);
wr.Close();
wr.Dispose();

try like this..

string path = "D://Files//";
            //string[] fileNames = { "A_L_PRTD_432124.txt", "A_L_PRTD_021345.txt" };
            string fileNameStartsWIth = "A_L_PRTD_";
            string[] fileNames = Directory
                 .GetFiles(path, "*.txt", SearchOption.AllDirectories)
                 .Select(f => Path.GetFileName(f)).Where(k => k.StartsWith(fileNameStartsWIth)).ToArray();

            string finalFile = "L_PRTD_" + DateTime.Now.ToString("ddMMMyyyy") + ".txt";
            string contentSeperator = Environment.NewLine + "-----------------------------------------------------" + Environment.NewLine;
            foreach (string file in fileNames)
            {
                string content = File.ReadAllText(path + file) + contentSeperator;
                File.AppendAllText(path + finalFile, content);
            } 

reference:
File.ReadAllText [^]

File.AppendText[^]

try this

File.AppendAllText(Path, content);

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