C# 小型资源管理器

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

namespace 小型资源管理器
{
    public  class MyFile
    {
        public float  FileLength { get; set; }//文件长度（KB）
        public string  FileName { get; set; }//文件名
        public string  FilePath { get; set; }//文件路径
        public string  FileType { get; set; }//文件类型
    }
}

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

namespace 小型资源管理器
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        TreeNode tn;
        private void Form1_Load(object sender, EventArgs e)
        {
            //检索计算机上的所有逻辑驱动器的驱动器名称。
            DriveInfo[] di = DriveInfo.GetDrives();
            foreach (DriveInfo item in di)
            {
                tn = new TreeNode(item.Name);
                tn.Tag = item.Name;
                tv01.Nodes.Add(tn);
            }
        }

        //单击绑定文件和文件夹信息
        private void tv01_AfterSelect(object sender, TreeViewEventArgs e)
        {
            TreeNode tn= tv01.SelectedNode;
            BingInfo(tn);

        }

        private void BingInfo(TreeNode tn)
        {
            //清空
            lvlist.Items.Clear();
            //绑定子目录
            DirectoryInfo dic = new DirectoryInfo(tn.Tag.ToString());
            DirectoryInfo[] info = dic.GetDirectories();
            foreach (DirectoryInfo item in info)
            {
                TreeNode temp = new TreeNode();
                temp.Text = item.Name;
                temp.Tag = item.FullName;
                tn.Nodes.Add(temp);
            }

            //获取目录下文件列表
            FileInfo[] fileinfo = dic.GetFiles();
            //定义泛型集合存储文件信息
            List<MyFile> files = new List<MyFile>();
            //遍历文件列表
            foreach (FileInfo  it in fileinfo )
            {

                MyFile file = new MyFile();
                file.FileName = it.Name;
                file.FileLength = it.Length;
                file.FileType = it.Extension;
                file.FilePath = it.FullName;
                files.Add(file);
            }
            //绑定到listview中
            foreach (MyFile  em in files )
            {
                ListViewItem lv = new ListViewItem(em.FileName );
                lv.SubItems.Add(em.FileLength.ToString () );
                lv.SubItems.Add(em.FileType );
                lv.SubItems.Add(em.FilePath );
                lvlist.Items.Add(lv);
            }

        }

        //复制
        private void 复制ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            //判断是否选中
            if (lvlist .SelectedItems .Count ==)
            {
                return;
            }
            //提示用户选择目标文件夹
            FolderBrowserDialog fbd = new FolderBrowserDialog();
            DialogResult result = fbd.ShowDialog();
            //源文件路径
            string sourcepath = lvlist.SelectedItems[].SubItems[].Text;
            //目标文件路径
            string despath = null;
            //如果正确选择目标位置，执行复制操作
            if (result==DialogResult .OK )
            {
                despath = fbd.SelectedPath;
                //lvlist表示显示文件信息的ListView对象
                despath += "\\" + lvlist.SelectedItems[].SubItems[].Text;
                //复制文件
                File.Copy(sourcepath ,despath );
                MessageBox.Show("复制成功！");
            }

        }

        //删除
        private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
        {

            string delectpath= lvlist.SelectedItems[].SubItems [].Text ;
            File.Delete(delectpath);
            MessageBox.Show("删除成功！");
        }

    }
}