获取单选框的值 var sexc = $("input[name='sex']:checked").val();

版权声明：大柱子 https://blog.csdn.net/weixin_43044132/article/details/88429778

var sexc = $("input[name='sex']:checked").val();
      <input type="radio" id="sex" name="sex" value="1" checked="checked">&nbsp;男&nbsp;&nbsp;&nbsp;&nbsp;
                            <input type="radio" id="sex" name="sex" value="2">&nbsp;女