效果圖
說明：
兼容性未測試
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>input獲取焦點選中文字</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="app">
<input v-model="val" @focus="onFocus($event)" />
</div>
</body>
<script>
const vm = new Vue({
el: '#app',
data() {
return {
val: 123456
}
},
methods: {
onFocus(event) {
event.currentTarget.select();
}
}
})
</script>
</html>