C# 如何获得文件修改时间

1、using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.IO;namespace csharpnouse{ class Program { static void Main(string[] args) { FileInfo fi = new FileInfo(@"d:\1.txt"); Console.WriteLine(fi.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss")); Console.ReadKey(); } }}