第一、圖片上傳，代碼如下：
xxx.aspx
代碼如下:

 <td class="style1">
                <asp:FileUpload ID="FileUpload1" runat="server"  />
                <asp:Button ID="Button1" runat="server" Text="上傳一般圖片" onclick="Button1_Click" />
            </td>
            <td class="style3">
                <asp:Image ID="Image1" runat="server" Height="200px" Width="200px" />
            </td>

xxx.aspx.cs
代碼如下:
 protected void Button1_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < Request.Files.Count; i++)
            {
                HttpPostedFile file = Request.Files[i];
                if (file.ContentLength > 0)
                {
                    if (file.ContentType.Contains("image/"))
                    {
                        using (System.Drawing.Image img = System.Drawing.Image.FromStream(file.InputStream))
                        {
                            string FileName = System.IO.Path.GetFileName(file.FileName);
                            string[] SplitFileName = FileName.Split('.');
                            string AtterFileName = DateTime.Now.ToString("yyyMMddHHmmss")+"." + SplitFileName[1];
                            img.Save(Server.MapPath("/upload/" + AtterFileName));