layui radio性别单选框赋值方法

<div class="layui-inline">          <label class="layui-form-label">性别</label>          <div class="layui-input-block">            <input type="radio" name="sex" id="sex" value="1" title="男" >            <input type="radio" name="sex" id="sex" value="2" title="女">                     </div>        </div>

 layui.use('form', function () {      var $ = layui.jquery, form = layui.form;      $.ajax({        type: "post",        url: "/Shared/GetPiDate",        data: {},        async: true,        dataType: "json",        success: function (data) {          $("input[name=sex][value=1]").attr("checked", data.UserSex == 1 ? true : false);          $("input[name=sex][value=2]").attr("checked", data.UserSex == 2 ? true : false);          form.render(); //更新全部                 }       }     });