C#編程讀取文檔Doc，Docx，Pdf的內容

Doc文檔：Microsoft Word 14.0 Object Library (GAC對象，調用前需要安裝word。安裝的word版本不同，COM的版本號也會不同)
Docx文檔：Microsoft Word 14.0 Object Library (GAC對象，調用前需要安裝word。安裝的word版本不同，COM的版本號也會不同)
Pdf文檔：PDFBox

/*
     作者：GhostBear


博客地址：Http://blog.csdn.net/ghostbear
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Text.RegularExpressions;

using org.pdfbox.pdmodel;
using org.pdfbox.util;
using Microsoft.Office.Interop.Word;
namespace TestPdfReader
{
    class Program
    {
        static void Main(string[] args)
        {

        //PDF
        PDDocument doc = PDDocument.load(@"C:\resume.pdf");
        PDFTextStripper pdfStripper = new PDFTextStripper();
        string text = pdfStripper.getText(doc);
        string result = text.Replace('\t', ' ').Replace('\n', ' ').Replace('\r', ' ').Replace(" ", "");
        Console.WriteLine(result);


        //Doc,Docx
        object docPath = @"C:\resume.doc";
        object docxPath = @"C:\resume.docx";
        object missing=System.Reflection.Missing.Value;
        object readOnly=true;

        Application wordApp;
        wordApp = new Application();

        Document wordDoc = wordApp.Documents.Open(ref docPath,
                                              ref missing,
                                              ref readOnly,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing,
                                              ref missing);
        string text2 = FilterString(wordDoc.Content.Text);

        wordDoc.Close(ref missing, ref missing, ref missing);
        wordApp.Quit(ref missing, ref missing, ref missing);
        Console.WriteLine(text2);


        Console.Read();

    }

    private static string FilterString(string input)
    {
        return Regex.Replace(input, @"(\a|\t|\n|\s+)", "");

    }
}

}</pre>