Tell a joke, Path is actually a class in C#, a class about file path operations

In the C# language, the Path class is mainly used for some operations on file paths, and it is also a static class.
The commonly used properties and methods in the Path class are shown in the following figure:

Example:

using System;
using System.IO;

namespace MySpace
{
    
    
    class Progarm
    {
    
    
        static void Main(string[] args)
        {
    
    
            Console.WriteLine("请输入一个文件路径：");
            string path = Console.ReadLine();
            Console.WriteLine("不包含扩展名的文件名： " +
                Path.GetFileNameWithoutExtension(path));
            Console.WriteLine("文件扩展名：" +
                Path.GetExtension(path));
            Console.WriteLine("文件全名：" +
                Path.GetFileName(path));
            Console.WriteLine("文件路径：" +
                Path.GetDirectoryName(path));

            //更改文件扩展名
            string newPath = Path.ChangeExtension(path, "doc");
            Console.WriteLine("更改后的文件全名：" + Path.GetFileName(newPath));
        }
    }
}

operation result: