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

namespace 为硬盘文件建立索引
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        /// <summary>
        /// 文件路径
        /// </summary>
        string fpath = "";

        /// <summary>
        /// 初始化路径
        /// </summary>
        /// <param name="rootDirectory"></param>
        private void BeginWrite(string rootDirectory)
        {

            fpath = @rootDirectory + "index.txt";
        }

        /// <summary>
        /// 写一行数据
        /// </summary>
        /// <param name="Text"></param>
        private void WriteText(string Text)
        {
            File.AppendAllText(fpath, Text + "\r\n");
        }

        /// <summary>
        /// 创建索引按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnCreateIndex_Click(object sender, EventArgs e)
        {

            DriveInfo[] DriveInfos = DriveInfo.GetDrives();
            foreach (DriveInfo di in DriveInfos)
            {
                if (di.DriveType == DriveType.Fixed)
                {
                    string rootDirectory = di.RootDirectory.FullName;
                   
                    ///textBoxRoot.Text输入的盘符（如：H）
                    if (rootDirectory.StartsWith(textBoxRoot.Text.Trim().ToUpper()))