<pre class="html" name="code"> <%--Body 代码--%> <div> <asp:RadioButtonList ID="RadioButtonList1" runat="server"> <asp:ListItem Value="A">a</asp:ListItem> <asp:ListItem Value="B">b</asp:ListItem> </asp:RadioButtonList> <asp:RadioButton ID="RadioButton1" GroupName="RBtn" Text="男" runat="server" Checked="true" /> <asp:RadioButton ID="RadioButton2" GroupName="RBtn" Text="女" runat="server" /> <asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="Button1_ClientClick()"></asp:Button> </div></pre>

<pre class="csharp" name="code"><%--Head 代码--%> <script language="javascript" type="text/javascript" src="js/jquery-1.9.1.js"></script> <script language="javascript" type="text/javascript"> function Button1_ClientClick() { alert($("input[name='RadioButtonList1']:checked").val()); // 若都没有选中，则弹出“undefined”，若有选中的，则弹出对应的 Value 值 if(document.getElementById("RadioButton1").checked==true) // 若RadioButton1被选中 { alert($("#RadioButton1:checked").val()); //弹出 RadioButton1 alert($("#RadioButton2:checked").val()); //弹出 undefined alert($("#RadioButton1:checked").val()=="RadioButton1"); //弹出 true } return false; //暂时不用传到后台 } </script> </pre>