C# Aspose.Words word转换指定内容并返回多张图片

public ResultResponse<string[]> PrintStudyRecords([FromBody]StudyInfo info)
        {
            ResultResponse<string[]> ret = new ResultResponse<string[]>();
            if (info.ProjectId <= 0)
            {
                ret.Flag = false;
                return ret;
            }
            var project = ProjectContract.GetFilterProject(p => p.Id == info.ProjectId).FirstOrDefault();
            if (project == null)
            {
                ret.Flag = false;
                return ret;
            }
            var trainTarget = TrainTargetContract.GetFilterTrainTargets(t => t.Id == project.TrainTargetId).FirstOrDefault();
            var studyRecords = StudyRecordsContract.GetList(s => s.ProjectId == info.ProjectId && s.IsFinish && !s.IsDelete).ToList();
            Document doc;
            using (var stream = System.IO.File.OpenRead(HttpContext.Current.Server.MapPath("/Content/学时记录.docx")))
            {
                doc = new Document(stream);
            }
            doc.Range.Replace(string.Format("${0}$", "Name"), LoginUser.Name, false, false);
            doc.Range.Replace(string.Format("${0}$", "PersonalId"), LoginUser.PersonalId, false, false);
            doc.Range.Replace(string.Format("${0}$", "Sex"), string.IsNullOrWhiteSpace(LoginUser.Sex) ? "" : LoginUser.Sex, false, false);
            doc.Range.Replace(string.Format("${0}$", "PhoneNum"), string.IsNullOrWhiteSpace(LoginUser.Tel) ? "" : LoginUser.Tel, false, false);
            doc.Range.Replace(string.Format("${0}$", "Company"), string.IsNullOrWhiteSpace(project.Company) ? "" : project.Company, false, false);
            doc.Range.Replace(string.Format("${0}$", "TrainTargetName"), trainTarget != null ? trainTarget.TrainName : "", false, false);
            doc.Range.Replace(string.Format("${0}$", "AllHours"), studyRecords.Count().ToString(), false, false);
　　　　　　　　//2指的是表格下标，一共有三个，我需要改变内容的是第三个表格
            Table tableRecord = (Table)doc.GetChild(NodeType.Table, 2, true);
            if (tableRecord == null)
            {
                var op = new ImageSaveOptions(SaveFormat.Jpeg);
                op.PrettyFormat = true;
                ret.Result = new string[doc.PageCount];
                for (var page = 0; page < doc.PageCount; page++)
                {
                    op.PageIndex = page;
                    using (var ms = new MemoryStream())
                    {
                        doc.Save(ms, op);
                        ret.Result[page] = "data:image/jpeg;base64," + Convert.ToBase64String(ms.GetBuffer());
                    }
                }
                ret.Flag = false;
                return ret;
            }
            if (studyRecords.Count() > 1)
            {
                for (int i = 0; i < studyRecords.Count - 1; i++)
                {
                    //克隆指定行
                    Row clonedRow = (Row)tableRecord.LastRow.Clone(true);
                    //在指定位置插入克隆行
                    tableRecord.AppendChild(clonedRow);
                }
            }
            var rowIndex = 0;
            ZhuJian.Entity.TrainManage.StudyRecord studyRecord = null;
            for (int i = 0; i < studyRecords.Count; i++)
            {
                studyRecord = studyRecords[i];
                rowIndex = i + 1;
                var row = tableRecord.Rows[rowIndex];

                var cell0 = row.Cells[0];
                Paragraph pg0 = new Paragraph(doc);
                pg0.AppendChild(new Run(doc, rowIndex + ""));
                cell0.RemoveAllChildren();
                cell0.AppendChild(pg0);

                var cell1 = row.Cells[1];
                Paragraph pg1 = new Paragraph(doc);
                pg1.AppendChild(new Run(doc, studyRecord.StartTime.ToString("yyyy/MM/dd") + "-" + (studyRecord.EndTime.HasValue ? studyRecord.EndTime.Value.ToString("yyyy/MM/dd") : "")));
                cell1.RemoveAllChildren();
                cell1.AppendChild(pg1);

                var cell2 = row.Cells[2];
                Paragraph pg2 = new Paragraph(doc);
                pg2.AppendChild(new Run(doc, studyRecord.ResourceName));
                cell2.RemoveAllChildren();
                cell2.AppendChild(pg2);

                var cell3 = row.Cells[3];
                Paragraph pg3 = new Paragraph(doc);
                pg3.AppendChild(new Run(doc, studyRecord.IsFinish ? "1" : "0"));
                cell3.RemoveAllChildren();
                cell3.AppendChild(pg3);
            }
            var option = new ImageSaveOptions(SaveFormat.Jpeg);
            option.PrettyFormat = true;
            ret.Result = new string[doc.PageCount];
            for (var page = 0; page < doc.PageCount; page++)
            {
                option.PageIndex = page;
                using (var ms = new MemoryStream())
                {
                    doc.Save(ms, option);
                    ret.Result[page] = "data:image/jpeg;base64," + Convert.ToBase64String(ms.GetBuffer());
                }
            }
            ret.Flag = true;
            return ret;
        }