1.引用word 组件
2.定义word
    Word.Application app = new Word.Application();
    Word.Document doc = new Word.Document();
    app.DisplayAlerts = Word.WdAlertLevel.wdAlertsNone;object Obj_FileName = “filename”;
    object Visible = false;
    object ReadOnly = false;
         //打开文件
    doc = app.Documents.Open(ref Obj_FileName, ref missing, ref ReadOnly, ref missing,
          ref missing, ref missing, ref missing, ref missing,
          ref missing, ref missing, ref missing, ref Visible,
          ref missing, ref missing, ref missing,
          ref missing);
     doc.Activate();
3.写word文档
    //写word文档
    Word.Table tbl = doc.Tables[1];
    tbl.Cell(1,2).Range.Text=‘’；
4.拷贝数据
    Word.Bookmark myBookmark;
    object oBookmark = "a";
    myBookmark=doc.Bookmarks.get_Item(ref oBookmark);
    myBookmark.Select();
    myBookmark.Range.Copy();
5.粘贴数据
    object oMyWordStrat= doc.Content.End-1;
    Word.Range rang=doc.Range(ref oMyWordStrat,ref oMyWordStrat);
    rang.InsertBreak(ref missing);
    rang.Paste();
6.保存
    doc.Save();
    object IsSave = false;
    doc.Close(ref IsSave,ref missing,ref missing);
7.退出应用
    object IsSave = false;
    app.Quit(ref IsSave,ref missing,ref missing);
    app = null;