页面以base64输出图片

 <%
            //读取文件路径,输出base64 编码

            System.IO.FileStream stream = System.IO.File.OpenRead(ViewBag.FilePath);
            byte[] data = System.IO.File.ReadAllBytes(ViewBag.FilePath);
           // MemoryStream ms = new MemoryStream(data);
           // byte[] bytes = stream.re();
            string base64 = Convert.ToBase64String(data);

            %>
         <img src='data:image/gif;base64,<%=base64 %>'/> <br />

图片Base64

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