這只是一個小程序，就是將ppt轉換成html,方法很多，為了以后備用，在此記錄一下，也和大家分享
  源碼如下：
   

using System;
  using System.Collections.Generic;
  using System.Text;
  using System.IO;
  using PPT = Microsoft.Office.Interop.PowerPoint;
  using System.Reflection;

namespace WritePptDemo
  {
      class PRogram
      {
          static void Main(string[] args)
          {
              string   path;         //文件路徑變量

              PPT.application pptApp;     //Excel應用程序變量
                PPT.Presentation pptDoc;     //Excel文檔變量

              PPT.Presentation pptDoctmp;

            path   = @"C:/MyPPT.ppt";      //路徑
              pptApp =   new PPT.ApplicationClass();   //初始化

            //如果已存在，則刪除
              if   (File.Exists((string)path))
              {
                    File.Delete((string)path);
              }

            //由于使用的是COM庫，因此有許多變量需要用Nothing代替
              Object   Nothing = Missing.Value;
              pptDoc =   pptApp.Presentations.Add(Microsoft.Office.Core.MsoTriState.msoFalse);
                pptDoc.Slides.Add(1,   Microsoft.Office.Interop.PowerPoint.PpSlideLayout.ppLayoutText);

              string text = "示例文本";

            foreach   (PPT.Slide slide in pptDoc.Slides)
              {
                    foreach (PPT.Shape shape in slide.Shapes)
                    {
                        shape.TextFrame.TextRange.InsertAfter(text);
                    }
              }

                //WdSaveFormat為Excel文檔的保存格式
                PPT.PpSaveAsFileType format = PPT.PpSaveAsFileType.ppSaveAsDefault;

            //將excelDoc文檔對象的內容保存為XLSX文檔 
                pptDoc.SaveAs(path, format, Microsoft.Office.Core.MsoTriState.msoFalse);

            //關閉excelDoc文檔對象 
                pptDoc.Close();

            //關閉excelApp組件對象 
                pptApp.Quit();

              Console.WriteLine(path + " 創建完畢！");

              Console.ReadLine();

              string   pathHtml = @"c:/MyPPT.html";

              PPT.Application pa = new PPT.ApplicationClass();

              pptDoctmp = pa.Presentations.Open(path,   Microsoft.Office.Core.MsoTriState.msoTrue,   Microsoft.Office.Core.MsoTriState.msoFalse,   Microsoft.Office.Core.MsoTriState.msoFalse);
                PPT.PpSaveAsFileType formatTmp = PPT.PpSaveAsFileType.ppSaveAsHTML;
                pptDoctmp.SaveAs(pathHtml, formatTmp,   Microsoft.Office.Core.MsoTriState.msoFalse);
                pptDoctmp.Close();
              pa.Quit();
                Console.WriteLine(pathHtml + " 創建完畢！");
          }
      }
  }
 
 
  以上程序是使用C# 先創建一個ppt 文件并向里面寫入了文字，然后再把此ppt 轉換成html  ,對于上面程序需要說明的其實就是
  引用dll的問題， 在項目中添加引用，在com 組件中選擇 microsoft powerpoint 11.0 object   library ，而如果你的電腦沒有安裝 office 2003 是不會有這個的，而如果安裝的是office 2007 則是microsoft powerpoint 12.0 object   library。而且即使你引用成功后，還是會編譯不通過，是因為少安裝了 office   PIA  ,在安裝office 時，如果你是選擇的典型安裝是不會安裝這個的，因為這個只針對開發人員才會用到。可以到網上下載一個 office PIA 安裝下就ok了
 
  ----------------------------------Office文件轉換成Html格式---------------------------------------------------------------------------------------------------------------------------------------------------------
  
  
  
 using   Microsoft.Office.Core;
 using Microsoft.Office.Interop.PowerPoint;

using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Text;
  using System.Web;
  using System.IO;
  using System.Text.RegularExpressions;
  using Nd.Webs;
  using aspose.Cells;
  using Aspose.Words;
  using ND.CommonHelper;
  using Microsoft.Office.Interop.PowerPoint;
  using Microsoft.Office.Core;

namespace Api.Note.Base
  {
      #region Office文件轉換成Html格式
      class OfficeHtmlBo
      {
          #region InsertHeaDHTML
          /// <summary>
          /// InsertHeadHtml
          /// </summary>
          /// <param   name="WordFilePath">InsertHeadHtml</param>
          private string   InsertHeadHtml(string strHtml, string realPath)
          {
              int index   = strHtml.IndexOf("<body");
              strHtml =   strHtml.Insert(index, "<div   style='height:60px;font-size:14px;margin:0px 0px   12px 0px;padding:14px 4px 12px 12px;line-height:24px;height:1%;'>以下是該文檔的HTML預覽效果。<br/><span>由于是網頁提取顯示word中的內容，有可能部分顯示與源文檔中有差異，如想查看更準確的信息，</span>您可以點擊&nbsp;<a   style='color:6699FF;text-decoration:underline;'   href='/Lib/UdControls/Download.aspx?action=Download&appFormCode=" +   HttpContext.Current.Request.QueryString["appFormCode"].ToString() +   "&path=" +   HttpContext.Current.Request.QueryString["path"].ToString() +   "&encrypt=" + HttpContext.Current.Request.QueryString["encrypt"].ToString()   + "'><b>下載原始附件</b></a></div>");

            Regex   reg = new   Regex(@"(?<start><img[^>]+?src="")(?<src>[^""]+?)(?<end>""[^>]+?>)");
              strHtml =   reg.Replace(strHtml, delegate(Match m)
              {
                    return string.Format("{0}{1}{2}{3}",
                        m.Groups["start"].Value,
                        realPath,
                        m.Groups["src"].Value,
                        m.Groups["end"].Value
                        );
              });

              return strHtml;
          }
          #endregion

        #region GetLeftStr
          /// <summary>
          /// 截取字符串左邊指定長度
          /// </summary>
          /// <param   name="str"></param>
          /// <param   name="length"></param>
          ///   <returns></returns>
          public string GetLeftStr(string   str, int length)
          {
              length =   length * 2;
              string   tempStr = "";
              int i = 0;
              foreach   (char c in str)
              {
                    tempStr += c.ToString();
                    if (((int)c >= 33) && ((int)c <= 126))
                    {
                        //字母和符號原樣保留 
                        i += 1;
                    }
                    else
                    {
                        i += 2;
                    }
                    if (i >= length)
                    {
                        return tempStr;
                    }
              }
              return   str;
          }

          #endregion

        #region 將Word文檔轉換成HTML格式
          /// <summary>
          /// 將Word文檔轉換成HTML格式
          /// </summary>
          /// <param   name="WordFilePath">Word文檔格式</param>
          private void WordToHtmlFile(string   WordFilePath)
          {
              try
              {
                    // 指定原文件和目標文件
                    string realPath = WordFilePath.Substring(0,   WordFilePath.LastIndexOf("/") + 1);
                    WordFilePath = System.Web.HttpContext.Current.Server.MapPath(WordFilePath);
                    object target = WordFilePath.Substring(0,   WordFilePath.LastIndexOf(".")) + ".html";
                    //string realPath = WordFilePath.Substring(0,   WordFilePath.LastIndexOf(".")) + ".html";

                  if (!File.Exists(target.ToString()))
                    {
                        Document doc = new Document(WordFilePath);
                        doc.Save(target.ToString(), SaveFormat.Html);
                    }

                  StreamReader sr = new StreamReader(target.ToString(), Encoding.Default);
                    string strHtml = sr.ReadToEnd();

                  strHtml = InsertHeadHtml(strHtml, realPath);
                    HttpContext.Current.Response.Write(strHtml);

                  sr.Close();
              }
              catch   (Exception ex)
              {
                    //記錄異常
                    LogEntry logEntry = new LogEntry();
                    logEntry.Message = ex.Message;
                    logEntry.Title = "---->將Word文檔轉換成HTML格式異常[WordToHtmlFile]";
                    logEntry.TimeStamp = DateTime.Now;
                    logEntry.LogEntryType = LogEntryType.Error;
                    logEntry.LogCatalog = LogCatalog.ExceptionLog;
                    logEntry.StackTrace = ex.StackTrace;
                    LogPosition logPosition = LogPosition.FileLog;
                    string positionParameter =   SysConfig.ToString(SysConfig.GetAppSetting("LogPath"));
                    SysLogger.Write(logEntry, logPosition, positionParameter);
              }
          }
          #endregion

        #region 將Excel文件轉換成HTML格式
          /// <summary>
          /// 將Excel文件轉換成HTML格式
          /// </summary>
          /// <param   name="ExcelFilePath">Excel文件路徑</param>
          private void   ExcelToHtmlFile(string ExcelFilePath)
          {
              try
              {
                    string realPath = ExcelFilePath.Substring(0,   ExcelFilePath.LastIndexOf("/") + 1);
                    int index = ExcelFilePath.LastIndexOf("/");
                    string fileName;
                    if (ExcelFilePath.IndexOf(":") != -1)
                    {
                        fileName = ExcelFilePath.Split(new char[] { ':' })[0].ToString();
                        fileName = GetLeftStr(fileName.Substring(0,   fileName.LastIndexOf(".")), 10) +   fileName.Substring(fileName.LastIndexOf("."));
                        fileName = HttpUtility.UrlEncode(fileName, Encoding.UTF8);
                    }
                    else
                    {
                        fileName = ExcelFilePath.Substring(index + 1, ExcelFilePath.Length - index -   1);
                        fileName = GetLeftStr(fileName.Substring(0,   fileName.LastIndexOf(".")), 10) +   fileName.Substring(fileName.LastIndexOf("."));
                        //編碼
                        fileName = HttpUtility.UrlEncode(fileName, Encoding.UTF8);
                    }
                    fileName = fileName.Substring(0, fileName.LastIndexOf("."));
                    ExcelFilePath = System.Web.HttpContext.Current.Server.MapPath(ExcelFilePath);
                    //目標html文件路徑
                    object target = ExcelFilePath.Substring(0,   ExcelFilePath.LastIndexOf(".")) + ".html";

                  string target2 = ExcelFilePath.Substring(0,   ExcelFilePath.LastIndexOf("http://")) + "http://" + fileName +   "_files//sheet001.htm";
                    if (!File.Exists(target.ToString()))
                    {
                        //為了保險,只讀方式打開 
                        //object readOnly = true;
                        //// 指定另存為格式(html) 
                        //object format = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;

                      ////打開Excel文件
                        //oBook = excelApp.Workbooks.Open(ExcelFilePath, Unknown, readOnly,
                        //    Unknown, Unknown, Unknown, Unknown, Unknown, Unknown,
                        //    Unknown, Unknown, Unknown, Unknown, Unknown, Unknown);

                      //// 轉換格式 
                        //oBook.SaveAs(target, format, Unknown, Unknown, Unknown, Unknown,
                        //       Microsoft.Office.Interop.Excel.XlSaveAsaccessMode.xlNoChange,
                        //     Unknown, Unknown, Unknown, Unknown, Unknown);

                      Workbook wBook = new Workbook();
                        wBook.Open(ExcelFilePath);
                        wBook.Save(target.ToString(), FileFormatType.Html);
                    }

                  StreamReader sr = new StreamReader(target2.ToString(), Encoding.Default);
                    string strHtml = sr.ReadToEnd();

                  strHtml = InsertHeadHtml(strHtml, realPath);

                  strHtml = strHtml.Replace("window.location.replace", "");
                    strHtml = strHtml.Replace("filelist.xml", realPath + "/"   + fileName + "_files/filelist.xml");
                    strHtml = strHtml.Replace("stylesheet.CSS", realPath +   "/" + fileName + "_files/stylesheet.css");
                    HttpContext.Current.Response.Write(strHtml);

                  sr.Close();
              }
              catch   (Exception ex)
              {
                    //記錄異常
                    LogEntry logEntry = new LogEntry();
                    logEntry.Message = ex.Message;
                    logEntry.Title = "---->將Excel文件轉換成HTML格式[ExcelToHtmlFile]";
                    logEntry.TimeStamp = DateTime.Now;
                    logEntry.LogEntryType = LogEntryType.Error;
                    logEntry.LogCatalog = LogCatalog.ExceptionLog;
                    logEntry.StackTrace = ex.StackTrace;
                    LogPosition logPosition = LogPosition.FileLog;
                    string positionParameter =   SysConfig.ToString(SysConfig.GetAppSetting("LogPath"));
                    SysLogger.Write(logEntry, logPosition, positionParameter);
              }
          }
          #endregion

        #region 將PPT文件轉換成HTML格式
          /// <summary>
          /// 將PPT文件轉換成HTML格式
          /// </summary>
          /// <param   name="PptFilePath">PPT文件路徑</param>
          private void PptToHtmlFile(string   PptFilePath)
          {
                ApplicationClass ac = new ApplicationClass();
                Presentation pptFile = null;
              try
              {
                    string realPath = PptFilePath.Substring(0,   PptFilePath.LastIndexOf(".")) + ".html";
                    PptFilePath = System.Web.HttpContext.Current.Server.MapPath(PptFilePath);
                    //獲得html文件名
                    object target = PptFilePath.Substring(0,   PptFilePath.LastIndexOf(".")) + ".html";

                  if (!File.Exists(target.ToString()))
                    {
                        if (PptFilePath.Contains(".pptx"))
                        {
                            pptFile = ac.Presentations.Open2007(PptFilePath, MsoTriState.msoCTrue,   MsoTriState.msoCTrue, MsoTriState.msoFalse, MsoTriState.msoFalse);
                            pptFile.SaveAs(target.ToString(), PpSaveAsFileType.ppSaveAsHTML,   MsoTriState.msoCTrue);
                        }
                        else if (PptFilePath.Contains(".ppt"))
                        {
                            pptFile = ac.Presentations.Open(PptFilePath, MsoTriState.msoCTrue,   MsoTriState.msoCTrue, MsoTriState.msoFalse);
                            pptFile.SaveAs(target.ToString(), PpSaveAsFileType.ppSaveAsHTML,   MsoTriState.msoCTrue);
                        }
                    }
                    //StreamReader sr = new StreamReader(target.ToString(), Encoding.Default);
                    //string strHtml = sr.ReadToEnd();
                    //Response.Write(strHtml);
                    HttpContext.Current.Response.Redirect(realPath);
              }
              finally
              {
                    if (pptFile != null)
                    {
                        pptFile.Close();
                    }
                    ac.Quit();
                    GC.Collect();
              }
          }
          #endregion
      }
      #endregion

}