asp:DropDownList ID="DropDownList1" runat="server">
            <asp:ListItem>11111</asp:ListItem>
            <asp:ListItem Value="2">2222</asp:ListItem>
            <asp:ListItem Value="3">33333</asp:ListItem>
            <asp:ListItem></asp:ListItem>
</asp:DropDownList><select>
    <option>11111</option>
    <option>22222</option>
    <option>33333</option>
</select>在 post 过程后 HTML 控件被刷新,无法保持状态
怎么让 HTML 控件也像服务器控件一样保持视图状态?