文件操作

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace WindowsFormsApplication67
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (openFileDialog1.ShowDialog() == DialogResult.OK) //判断是否选择了文件
            {
                textBox1.Text = openFileDialog1.FileName; //显示选择的文件名
                FileInfo finfo = new FileInfo(textBox1.Text); //创建FileInfo对象
                string strCTime, strLATime, strLWTime, strName, strFName, strDName, strISRead;
                long lgLength;
                strCTime = finfo.CreationTime.ToShortDateString(); //获取文件创建时间
                strLATime = finfo.LastAccessTime.ToShortDateString(); //获取上次访问该文件的时间
                strLWTime = finfo.LastWriteTime.ToString(); //获取上次写入文件的时间
                strName = finfo.Name; //获取文件名称
                strFName = finfo.FullName; //获取文件的完整目录
                strDName = finfo.DirectoryName; //获取文件的完整路径
                strISRead = finfo.IsReadOnly.ToString(); //获取文件是否只读
                lgLength = finfo.Length; //获取文件长度

                MessageBox.Show("文件信息： 创建时间：" + strCTime + " 上次访问时间：" + strLATime + " 上次写入时间：" + strLWTime + " 文件名称：" + strName + " 完整目录：" + strFName + " 完整路径：" + strDName + " 是否只读：" + strISRead + " 文件长度：" + lgLength);

            }
        }
    }
}