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所以目前我有这个并且它不起作用,因为出于安全原因你不能获取本地文件。但我想要做的是用户在 Excel 中提交这些图片,我抓取这些图片并将它们放入字符串生成器中进行预览。因此,如果有办法做到这一点,请告诉我。

    StringBuilder sb = new StringBuilder();
    Spire.Xls.Workbook workbook = new Spire.Xls.Workbook();
    workbook.LoadFromFile(Path.Combine(path, file));
    Spire.Xls.Worksheet sheet = workbook.Worksheets[0];
    Spire.Xls.Collections.PicturesCollection pictures = sheet.Pictures;
    for (i = 0; i < pictures.Count; i++)
    {
        string image_Path = Path.Combine(path, "image"+i));
        pictures[i].Picture.Save(image_Path, System.Drawing.Imaging.ImageFormat.Png);
         sb.Append(@"<img src=" + image_Path + "/>");   
 }
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