需求：在Winform使用NOPI做导入时候，需要导入数据的同时导入图片。

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虽然代码方面不适用(我好像也没仔细看过代码)，但是感谢大佬给了灵感http://www.wjhsh.net/IT-Ramon-p-13100039.html，将excel后缀修改成Zip,解压，在其中找到图片的xml位置信息，以及对应的xml图片

效果图：

1、核心读取代码

        System.Data.DataTable dt;
private void btnImport_Click(object sender, EventArgs e)
        {
            dt= null;
string copyAfterFileName = DateTime.Now.ToString("yyyyMMddHHssmm");//文件名 以及解压后的文件夹名
            string copyAfterFileNameExt = ".zip";//压缩后缀
            string modelExlPath = Environment.CurrentDirectory + "\\Temp\\Cache";//缓存文件
            if (!Directory.Exists(modelExlPath)) { Directory.CreateDirectory(modelExlPath); }//创建缓存文件夹
            string copyAfterFullName = Path.Combine(modelExlPath, copyAfterFileName + copyAfterFileNameExt);//移动到该目录并改为压缩包
            string copyDirFullName = Path.Combine(modelExlPath, copyAfterFileName);//解压后的文件夹位置

            OpenFileDialog openfile= new OpenFileDialog();
            openfile.Filter= "导入Excel(*.xls,*.xlsx)|*.xls;*.xlsx";
            openfile.FilterIndex= 0;
            openfile.RestoreDirectory= true;
            openfile.Title= "导入文件路径";
//openfile.ShowDialog();
            if (openfile.ShowDialog() != DialogResult.OK)
            {
return;
            }

           Common.ShowWaitForm();//正在加载..窗口
            FileInfo fi1 = new FileInfo(openfile.FileName);
            fi1.CopyTo(copyAfterFullName);//移动文件，并修改称为yyyyMMddHHssmm.zip

            try
            {
                wsDr wsDrModel= null;
if (!Directory.Exists(copyDirFullName)) { Directory.CreateDirectory(copyDirFullName); }
//解压到当前文件夹
                if (SharpZip.UnpackFiles(copyAfterFullName, copyDirFullName) == false)//yyyyMMddHHssmm.zip为文件夹yyyyMMddHHssmm
                {
                    Common.ShowErrorDialog("导入失败！");
                    LogHelper.Instance.Error("产品导入失败，" + copyDirFullName + "自解压失败！");
return;
                }
else
                {
                    wsDrModel= GetImgLoaction(copyDirFullName);//读取excel图片信息，对应位置，对应的绝对路径，对应的图片实体
                }

string msg = "";
                dt= ExcelUtil.ExcelToTable(openfile.FileName, wsDrModel, ref msg);//获得Excel
                if (!string.IsNullOrEmpty(msg))
                {
                   Common.ShowInfoDialog(msg);
                }
if (dt == null || dt.Rows.Count <= 0)
                {
                   Common.ShowSuccessTip("导入失败！");
return;
                }
                LoadList();//刷新表格
            }
catch (Exception ex)
            {
               Common.ShowErrorDialog("导入错误！" + ex.Message);
            }
finally
            {
                Common.HideWaitForm();//隐藏正在加载..窗口
            }
        }

private wsDr GetImgLoaction(string copydirfullname)
        {
//copydirfullname = "E:\\administrator\\Desktop\\test\\yyyyMMddHHssmm";
            string pathMap = Path.Combine(copydirfullname, "xl\\drawings\\drawing1.xml");
var doc = XDocument.Load(pathMap);
//清理大部分命名空间，blip属性中的情况只能手动指定了
            doc.Descendants().Attributes().Where(x => x.IsNamespaceDeclaration).Remove();
foreach (var elem in doc.Descendants())
            {
                elem.Name= elem.Name.LocalName;
            }
            doc.Save(pathMap);
            wsDr model= XmlHelper.XmlToModelFile(pathMap);
            Relationships relationships= GetImg(copydirfullname);

if (model.twoCellAnchorList.Count > 0)
            {
//将图片路径，图片实体保存在图片位置表(wsDr)中
                foreach (var item in model.twoCellAnchorList)
                {
                    item.pic1.nvPicPr1.cNvPr1.img= relationships.Relationship.SingleOrDefault(a => a.Id == item.pic1.blipFill1.blip1.imgid).img;
                    item.pic1.nvPicPr1.cNvPr1.imgUrl= relationships.Relationship.SingleOrDefault(a => a.Id == item.pic1.blipFill1.blip1.imgid).imgUrl;
                }
            }
return model;
        }
private Relationships GetImg(string copydirfullname)
        {
string pathMap = Path.Combine(copydirfullname, "xl\\drawings\\_rels\\drawing1.xml.rels");//获取图片所在目录的xml.rels
            FileInfo fi = new FileInfo(pathMap);

string newpathMap = Path.Combine(copydirfullname, "xl\\drawings\\_rels\\drawing1.xml");//转换为xml，不然不可读取
            if (fi.Exists)
            {
                fi.MoveTo(newpathMap);
            }

//代码可用
            var doc = XDocument.Load(newpathMap);
            doc.Descendants().Attributes().Where(x=> x.IsNamespaceDeclaration).Remove();//移除大部分命名空间
            foreach (var elem in doc.Descendants())
                elem.Name= elem.Name.LocalName;
            doc.Save(newpathMap);

            Relationships model= XmlHelper.XmlToModelFile(newpathMap);//获取图片所在目录的xml
            string pathMap1 = Path.Combine(copydirfullname, "xl\\drawings\\drawing1.xml");//../media/image1.png 是以xl/drawings文件夹的基础上，而不是xl/drawings/_rels
            foreach (var item in model.Relationship)
            {
string newpath = GetPath(Path.GetFullPath(pathMap1), item.Target);//获取 yyyyMMddHHssmm\xl\drawings target ../media/image1.png 转换为yyyyMMddHHssmm\xl\media\image1.png
//保存路径，该路径在上传图片时使用
                item.imgUrl = newpath;
//以流形式读取图片，不占用图片
                using (var stream = new FileStream(newpath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete))
                {
                    item.img= Image.FromStream(stream);
                }
            }
return model;
        }
private string GetPath(string sourPath, string path)
        {
string[] pathT = path.Split('/');
string newpath = sourPath;
for (int i = 0; i < pathT.Length; i++)
            {

if (pathT[i] == "..")
                {
                    DirectoryInfo di= new DirectoryInfo(Path.GetDirectoryName(newpath));

                    newpath= di.Parent.FullName;
                }
else
                {
                    newpath= Path.GetFullPath(Path.Combine(newpath, pathT[i]));
                }
            }
return newpath;
        }

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