C#将制定目录文件名转换成大写的方法
本文实例讲述了C#将制定目录文件名转换成大写的方法。分享给大家供大家参考。具体如下：
usingSystem;
usingSystem.IO;
usingSystem.Linq;
namespaceRobvanderWoude
{
classUpCase
{
staticintMain(string[]args)
{
stringdir=string.Empty;
stringfilespec=string.Empty;
char[]trailingbackslash="\\".ToCharArray(0,1);
char[]locaseletters="abcdefghijklmnopqrstuvwxyz".ToCharArray(0,26);
boolverbose=false;
#regionCommandLineParsing
switch(args.Length)
{
case0:
returnWriteError(string.Empty);
case1:
filespec=args[0].Trim('"');
break;
case2:
filespec=args[0].Trim('"');
if(args[1].Substring(0,2).ToUpper()=="/V")
{
verbose=true;
}
else
{
returnWriteError("Invalidcommandlineswitch:"+args[1]);
}
break;
default:
returnWriteError(string.Empty);
}
if(string.IsNullOrWhiteSpace(filespec)||filespec=="/?")
{
returnWriteError(string.Empty);
}
if(filespec.IndexOfAny("/?".ToCharArray(0,2))!=-1)
{
returnWriteError("Invalidfilespecification:\""+filespec+"\"");
}
#endregionCommandLineParsing
try
{
//Checkifthedirectoryexists
try
{
dir=Path.GetDirectoryName(filespec);
if(string.IsNullOrWhiteSpace(dir))
{
dir=Path.GetFullPath(".");
}
if(!Directory.Exists(dir))
{
returnWriteError("Directorynotfound:\""+dir+"\"");
}
dir=dir.TrimEnd(trailingbackslash)+"\\";
}
catch(ArgumentException)
{
returnWriteError("Parentdirectorynotfound");
}
//ExtracttheFILEspecification(removingthepath)
stringfilenames=filespec.Substring(filespec.LastIndexOf("\\")+1);
//Enumeratethefiles
string[]files=Directory.EnumerateFiles(dir,filenames).ToArray<string>();
intcount=0;
foreach(stringfileinfiles)
{
if(File.Exists(file))
{
stringfilename=Path.GetFileName(file);
if(filename.IndexOfAny(locaseletters)>-1)
{
count++;
stringnewfilename=dir+filename.ToUpperInvariant();
File.Move(file,newfilename);
}
}
}
if(verbose)
{
Console.WriteLine("{0}matchingfile{1}renamed",(count==0?"No":count.ToString()),(count==1?string.Empty:"s"));
}
returncount;
}
catch(Exceptione)
{
returnWriteError(e.Message);
}
}
publicstaticintWriteError(Exceptione)
{
returnWriteError(e==null?null:e.Message);
}
publicstaticintWriteError(stringerrorMessage)
{
/*
UpCase.exe,Version1.02
Renamespecifiedfilestoalluppercase
Usage:UpCase.exefilespec[/Verbose]
Where:filespecis(are)thefile(s)toberenamed(wildcardsallowed)
/Verbosedisplaysthenumberoffilesrenamed
Notes:Usedoublequotesiffilespeccontainsspaces.
Returncode(\"ErrorLevel\")equalsthenumberofrenamedfiles.
Switchmaybeabbreviated,e.g./Vinsteadof/Verbose.
WrittenbyRobvanderWoude
*/
if(!string.IsNullOrWhiteSpace(errorMessage))
{
Console.Error.WriteLine();
Console.ForegroundColor=ConsoleColor.Red;
Console.Error.Write("ERROR:");
Console.ForegroundColor=ConsoleColor.White;
Console.Error.WriteLine(errorMessage);
Console.ResetColor();
}
Console.Error.WriteLine();
Console.Error.WriteLine("UpCase.exe,Version1.02");
Console.Error.WriteLine("Renamespecifiedfilestoalluppercase");
Console.Error.WriteLine();
Console.Error.Write("Usage:");
Console.ForegroundColor=ConsoleColor.White;
Console.Error.WriteLine("UpCase.exefilespec[/Verbose]");
Console.ResetColor();
Console.Error.WriteLine();
Console.Error.Write("Where:");
Console.ForegroundColor=ConsoleColor.White;
Console.Error.Write("filespec");
Console.ResetColor();
Console.Error.WriteLine("is(are)thefile(s)toberenamed(wildcardsallowed)");
Console.ForegroundColor=ConsoleColor.White;
Console.Error.Write("/V");
Console.ResetColor();
Console.Error.WriteLine("erbosedisplaysthenumberoffilesrenamed");
Console.Error.WriteLine();
Console.Error.WriteLine("Note:Usedoublequotesiffilespeccontainsspaces.");
Console.Error.WriteLine("Returncode(\"ErrorLevel\")equalsthenumberofrenamedfiles.");
Console.Error.Write("Switchmaybeabbreviated,e.g.");
Console.ForegroundColor=ConsoleColor.White;
Console.Error.Write("/V");
Console.ResetColor();
Console.Error.Write("insteadof");
Console.ForegroundColor=ConsoleColor.White;
Console.Error.Write("/V");
Console.ResetColor();
Console.Error.WriteLine("erbose.");
Console.Error.WriteLine();
Console.Error.WriteLine("WrittenbyRobvanderWoude");
Console.Error.WriteLine("http://www.baidu.com");
return0;
}
}
}
希望本文所述对大家的C#程序设计有所帮助。