.NET中Path类的一些常见用法

 1             string filePath = @"C:\D\log\Receive\postedFile.txt";
 2             int padSpacesLength = 30;
 3             string newFilePath = string.Empty;
 4 
 5             //change original file extensiont form .txt to .jpg
 6             newFilePath = Path.ChangeExtension(filePath, ".jpg");
 7             Console.WriteLine("{0}{1}", "Change extension to jpg:".PadRight(padSpacesLength), newFilePath);
 8 
 9             string path1 = @"c:\temp";
10             string path2 = @"data";
11             string path3 = @"book.xml";
12             //combine path1 and path2 and path3
13             //note: the path to be combined should not be starts with slash(\)
14             newFilePath = Path.Combine(path1, path2, path3);
15             Console.WriteLine("{0}{1}", "Combine multiple paths:".PadRight(padSpacesLength), newFilePath);
16 
17             string fileName = Path.GetFileName(filePath);
18             Console.WriteLine("{0}{1}", "File Name:".PadRight(padSpacesLength), fileName);
19 
20             //get directory name of this file
21             string directoryName = Path.GetDirectoryName(filePath);
22             Console.WriteLine("{0}{1}", "Directory name of file:".PadRight(padSpacesLength), directoryName);
23 
24             //get the file name without file extension
25             string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(filePath);
26             Console.WriteLine("{0}{1}", "File name without extension:".PadRight(padSpacesLength), fileNameWithoutExtension);
27 
28             //just to get the extension name of this file
29             string extensionName = Path.GetExtension(filePath);
30             Console.WriteLine("{0}{1}", "The extension name of file:".PadRight(padSpacesLength), extensionName);
31 
32             //get the temp folder of environment
33             string tempPath = Path.GetTempPath();
34             Console.WriteLine("{0}{1}", "The temp path of enviornment:".PadRight(padSpacesLength), tempPath);
35 
36             //get a tempfile name
37             string tempFileName = Path.GetTempFileName();
38             Console.WriteLine("{0}{1}", "A temp file name:".PadRight(padSpacesLength), tempFileName);