demo_radiobutton 在线工具
<html> <body> <form runat="server"> Select your favorite color: <asp:RadioButton id="red" Text="Red" Checked="True" GroupName="colors" runat="server"/> <asp:RadioButton id="green" Text="Green" GroupName="colors" runat="server"/> <asp:RadioButton id="blue" Text="Blue" GroupName="colors" runat="server"/> <asp:Button text="Submit" OnClick="submit" runat="server"/> <p><asp:Label id="Label1" runat="server"/></p> </form> </body> </html>