校验输入框只能输入数字类型
<a-input
v-model.trim="form.card"
placeholder="请输入卡号或直接打卡"
style="width:50%"
allowClear
@keyup="form.card = onlyNumber(form.card)"
@afterpaste="form.card = onlyNumber(form.card)"
@input="form.card = onlyNumber(form.card)"
/>
onlyNumber(value){ return value.replace(/[^\d]/g,'') },