C# Path 目录

变量准备

var filePath = @"c:doc1.txt";
var dirPath1 = @"c:music";
var dirPath2 = @"c:movie";

路径拼接

Console.WriteLine(Path.Combine(dirPath1, "a.mp3")); //c:musica.mp3
Console.WriteLine(Path.Combine(dirPath2, "b.mp4")); //c:movie.mp4

获取文件夹的名字

Console.WriteLine(Path.GetDirectoryName(dirPath1)); //c:music
Console.WriteLine(Path.GetDirectoryName(dirPath2)); //c:
Console.WriteLine(Path.GetDirectoryName(filePath)); //c:doc

Console.WriteLine(new DirectoryInfo(dirPath1).Name); //music
Console.WriteLine(new DirectoryInfo(dirPath2).Name); //movie
Console.WriteLine(new DirectoryInfo(@"d:acd").Parent.Name); //c

获取文件名或后缀

Console.WriteLine(Path.GetFileName(filePath));  //1.txt
Console.WriteLine(Path.GetFileNameWithoutExtension(filePath));  //1
Console.WriteLine(Path.GetExtension(filePath)); //.txt 

获取程序当前目录

System.AppDomain.CurrentDomain.BaseDirectory