如何使用c#获取特定文件名

发布于 2024-12-09 07:54:42 字数 769 浏览 2 评论 0原文

我的文件夹中有 10 个 zip 文件，其路径如下

目标目录 = "C:\docs\folder\"

一些 zip 文件名称是这样的

abc-19870908.Zip 
abc-19870908.zip
abc-12345678.zip

，有些是这样的...

doc.zip
doc123.zip  
..

我通过使用以下代码获取所有文件名...

string [] fileEntries = Directory.GetFiles(targetDirectory); 
foreach(string fileName in fileEntries)
{
  // here I need to compare , 
  // I mean I want to get only these files which are having 
  // these type of  filenames `abc-19870908.Zip`

  if (filename == "")
  {

       // I want to do something
   }
}

我必须在双引号中放入什么在这一行中 if(filename == "") 来获取像 abc-19870908.Zip 这些文件名。

有人对此提出任何想法吗？

非常感谢...

原文

I have 10 zip files in a folder having path like this

TargetDirectory = "C:\docs\folder\"

some of the zip files names are like this

abc-19870908.Zip 
abc-19870908.zip
abc-12345678.zip

and some are like this...

doc.zip
doc123.zip  
..

I am getting all file names by using following code...

string [] fileEntries = Directory.GetFiles(targetDirectory); 
foreach(string fileName in fileEntries)
{
  // here I need to compare , 
  // I mean I want to get only these files which are having 
  // these type of  filenames `abc-19870908.Zip`

  if (filename == "")
  {

       // I want to do something
   }
}

What i have to put in the double quotes in this line if(filename == "") to get like abc-19870908.Zip these filenames.

Would any one please suggest any idea about this?

Many thanks...

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请别遗忘我 2024-12-16 07:54:42

如果您只对包含破折号的 zip 文件感兴趣，则可以向 Directory.GetFiles 提供搜索模式。

string [] fileEntries = Directory.GetFiles(targetDirectory, "*-*.zip");

有关这些搜索模式的更多信息，请查看此链接：http://msdn.microsoft.com/en-我们/library/wz42302f.aspx

If you're only interested in zip files containing a dash, you can provide a search pattern to Directory.GetFiles.

string [] fileEntries = Directory.GetFiles(targetDirectory, "*-*.zip");

Check out this link for more information on those search patterns: http://msdn.microsoft.com/en-us/library/wz42302f.aspx

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陌路黄昏 2024-12-16 07:54:42

我想

 if (filename.Contains("-"))
 {
    ...
 }

如果 - 始终出现在您感兴趣的文件名中

，或者

 if (filename.StartsWith("abc-"))
 {
    ...
 }

如果您感兴趣的文件名始终以 abc- 开头，您就可以这样做。

I guess you can do

 if (filename.Contains("-"))
 {
    ...
 }

if the - is always present in the filenames you are interested in

 if (filename.StartsWith("abc-"))
 {
    ...
 }

if the filenames always start with abc- for the ones you are interested in.

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拥有 2024-12-16 07:54:42

你可以做 if(filename.StartsWith ("abc-") ) 或者你可以做 if (filename.Contains ( "-" ) ) 或者你可以做 >string [] fileEntries = Directory.GetFiles(targetDirectory, "abc-*.Zip");

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却一份温柔 2024-12-16 07:54:42

// Consider using this overload:
// public static string[] GetFiles( string path, string searchPattern)

string [] fileEntries = Directory.GetFiles(targetDirectory, "abc*.zip");

或者，您可以使用正则表达式，如下所示：

string [] fileEntries = Directory.GetFiles(targetDirectory);
foreach(string fileName in fileEntries)
{
   if(Regex.Match (filename, @"abc.*?\.zip", RegexOptions.IgnoreCase))
   {
      // i want to do something
   }
 }

// Consider using this overload:
// public static string[] GetFiles( string path, string searchPattern)

string [] fileEntries = Directory.GetFiles(targetDirectory, "abc*.zip");

Alternatively, you can use a regular expression as follows:

string [] fileEntries = Directory.GetFiles(targetDirectory);
foreach(string fileName in fileEntries)
{
   if(Regex.Match (filename, @"abc.*?\.zip", RegexOptions.IgnoreCase))
   {
      // i want to do something
   }
 }

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无可置疑 2024-12-16 07:54:42

List<String> files = Directory.GetFiles(@"C:\docs\folder\").ToList();
var g = from String s in files where s.StartsWith("abc") select s;
foreach(var z in g)
{
   //Do stuff in here as a replacement for your if
}

List<String> files = Directory.GetFiles(@"C:\docs\folder\").ToList();
var g = from String s in files where s.StartsWith("abc") select s;
foreach(var z in g)
{
   //Do stuff in here as a replacement for your if
}

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半夏半凉 2024-12-16 07:54:42

您可以使用与您的文件名匹配的正则表达式，大致如下：

string sPattern = "abc-\d+\.zip";

string [] fileEntries = Directory.GetFiles(targetDirectory); 
foreach(string fileName in fileEntries)
{
  // here i need to compare , i mean i want to get only these files which are having these type of  filenames `abc-19870908.Zip`
  if(System.Text.RegularExpressions.Regex.IsMatch(filename , sPattern, System.Text.RegularExpressions.RegexOptions.IgnoreCase))
  {

       // i want to do something
  }

}

正则表达式“abc-\d+.zip”意味着
字符串“abc-”后跟任意数量的数字，然后是 .后跟字符串“zip”（正则表达式语法）

You could use a regular expression that matches your filenames, something along thees lines:

string sPattern = "abc-\d+\.zip";

string [] fileEntries = Directory.GetFiles(targetDirectory); 
foreach(string fileName in fileEntries)
{
  // here i need to compare , i mean i want to get only these files which are having these type of  filenames `abc-19870908.Zip`
  if(System.Text.RegularExpressions.Regex.IsMatch(filename , sPattern, System.Text.RegularExpressions.RegexOptions.IgnoreCase))
  {

       // i want to do something
  }

}

The regular expression "abc-\d+.zip" means
the string "abc-" followed by any number of digits, followed by a . followed by the string "zip" (regular expression syntax)

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