C# 通过Path获取后缀，文件名，目录等

        static void Test() {
            string path = "E:\\软件包\\net安装包\\4_NDP472-KB4054531-Web.exe";
            Console.WriteLine("目录:" + Path.GetDirectoryName(path)); //E:\软件包\net安装包
            Console.WriteLine("后缀:" + Path.GetExtension(path)); //.exe
            Console.WriteLine("文件名:" + Path.GetFileName(path)); //4_NDP472-KB4054531-Web.exe
            Console.WriteLine("不含后缀文件名:" + Path.GetFileNameWithoutExtension(path)); //4_NDP472-KB4054531-Web
            Console.WriteLine("跟目录:" + Path.GetPathRoot(path));  //E:\ 
            Console.WriteLine("更改后缀:" + Path.ChangeExtension(path, ".bin")); //E:\\软件包\\net安装包\\4_NDP472-KB4054531-Web.bin
        }