https://2x.antdv.com/components/input-number-cn/#InputNumber-
@focus 焦距的时候触发函数
<!-
<a-input-number
style="width: 63px"
:min="1"
:max="100000"
placeholder="请输入0-9的6位数编码"
:default-value="3"
@focus="focus(record.id)"
/>标签：触发,antdv,焦距,点击,components,input From： https://www.cnblogs.com/kaibindirver/p/17041671.html