jq 下拉框获取选中自定义属性值

//下拉框发送改变后 获取选择的信息
<div class="form-group">
    <label class="col-sm-3 control-label">地址：</label>
    <div class="col-sm-6">
        <select name="address"   data-live-search="true"  tabindex="4">
            <option >==请选择==</option>
            <foreach name="voList" item="vlo">
                <option value="{$vlo.name}" code="{$vlo.tel}-{$vlo.engineeringmanage}-{$vlo.supervisor}-{$vlo.designer}-{$vlo.last_time}">{$vlo.address}
                </option>
            </foreach>
        </select>
    </div>
</div>

<script>$("#selectAddress").change(functionselectAddress(){
        var $values = $(this).children('option:selected').attr('code');  //后代选中
        var $name = $(this).children('option:selected').val();
        var $address = $(this).children('option:selected').text();
        var $vals = $values.split('-');
console.log($vals)})
</script>