C# - 如何从路径中提取文件名和扩展名？
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C# - How to extract the file name and extension from a path?
提问by CrimsonDeath
So, say I have
所以，说我有
string path = "C:\Program Files\Program\File.exe";
How do I get only "File.exe"? I was thinking something with split (see below), but what I tried doesn't work...
我如何只获得“File.exe”？我正在考虑拆分（见下文），但我尝试的方法不起作用......
This is my code.
这是我的代码。
List<string> procs = new List<string>(); //Used to check if designated process is already running
foreach (Process prcs in Process.GetProcesses())
procs.Add(prcs.ProcessName); //Add each process to the list
foreach (string l in File.ReadAllLines("MultiStart.txt")) //Get list of processes (full path)
if (!l.StartsWith("//")) //Check if it's commented out
if (!procs.Contains(l.Split('\')[l.Split('\').Length - 1])) //Check if process is already running
Process.Start(l);
I'm probably just being a noob. ._.
我可能只是个菜鸟。._.
回答by SLaks
You're looking for Path.GetFileName(string).
您正在寻找Path.GetFileName(string).
回答by manman
System.IOhas different classes to work with files and directories. Between them, one of the most useful one is Pathwhich has lots of static helper methods for working with files and folders:
System.IO有不同的类来处理文件和目录。在它们之间，最有用的方法之一是Path具有许多用于处理文件和文件夹的静态辅助方法：
Path.GetExtension(yourPath); // returns .exe
Path.GetFileNameWithoutExtension(yourPath); // returns File
Path.GetFileName(yourPath); // returns File.exe
Path.GetDirectoryName(yourPath); // returns C:\Program Files\Program
回答by Fatih GüRDAL
With the last character search you can get the right result.
通过最后一个字符搜索，您可以获得正确的结果。
string path = "C:\Program Files\Program\fatih.gurdal.docx";
string fileName = path.Substring(path.LastIndexOf(((char)92))+ 1);
int index = fileName.LastIndexOf('.');
string onyName= fileName.Substring(0, index);
string fileExtension = fileName.Substring(index + 1);
Console.WriteLine("Full File Name: "+fileName);
Console.WriteLine("Full File Ony Name: "+onyName);
Console.WriteLine("Full File Extension: "+fileExtension);
Output:
输出：
Full File Name: fatih.gurdal.docx
Full File Ony Name: fatih.gurdal
Full File Extension: docx
完整文件名：fatih.gurdal.docx
完整文件名称：fatih.gurdal
完整文件扩展名：docx
