前端代码： <tdclass="auto-style74"style="text-align:right"> <asp:FileUploadID="FileUpload"runat="server"/> <asp:LabelID="notice"runat="server"ForeColor="Red"Text=""></asp:Label> </td> <tdclass="auto-style39"style="text-align:right"> <asp:ButtonID="Button4"runat="se...