asp.net 替換word內(nèi)容 含圖片希望替換后 樣式不變，圖片保留Microsoft.Office.Interop.Word.Application app =new Microsoft.Office.Interop.Word.Application();   object nullobj = System.Reflection.Missing.Value;   object file = filePath;   Microsoft.Office.Interop.Word.Document doc = app.Documents.Open(    ref file, ref nullobj, ref nullobj,    ref nullobj, ref nullobj, ref nullobj,    ref nullobj, ref nullobj, ref nullobj,    ref nullobj, ref nullobj, ref nullobj,    ref nullobj, ref nullobj, ref nullobj, ref nullobj);     doc.Content.Text = doc.Content.Text.Replace(strOld, strNew);      doc.Close(ref nullobj, ref nullobj, ref nullobj);   //關(guān)閉應(yīng)用   app.Quit(ref nullobj, ref nullobj, ref nullobj);   app=null;   GC.Collect();我現(xiàn)在用的方法樣式變了，圖片丟了，想問一下有沒有其他方法。