c# Path 类

Path类

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _02Path的使用方法
{
    class Program
    {
        static void Main(string[] args)
        {
            string str = @"E:dotNetStudy文件操作学习New.txt";

            //获取文件名;
            string fileName = Path.GetFileName(str);
            Console.WriteLine(fileName);

            //获取文件目录;
            string dirName = Path.GetDirectoryName(str);
            Console.WriteLine(dirName);

            //获取文件目录完整路径;
            string dirPath = Path.GetFullPath(str);
            Console.WriteLine(dirPath);

            //获取文件扩展名;
            string fileExt = Path.GetExtension(str);
            Console.WriteLine(fileExt);

            //获取文件名不带扩展名;
            string fileName1 = Path.GetFileNameWithoutExtension(str);
            Console.WriteLine(fileName1);

            //组合文件名称
            string cName = Path.Combine(@"E:a", "st.txt");
            Console.WriteLine(cName);
            //输出：E:ast.txt
            Console.ReadKey(); 
            
        }
    }
}