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思路：把input的定位设为相对定位，通过将伪元素after设为绝对定位对input进行覆盖。.checkbox{ width: .32rem; height: .32rem; position: relative;}.checkbox:after{ position: absolute; top:0; left: 0; content: ""; widt...

我使用的input的type=number 。先将箭头给隐藏。css:html:<input type="text v-focus1 v-enter-number2placeholder="1" @keyup="changePrice($event)" v-model="discount">script:自动聚焦： Vue....