I found that he had a time lag.
<template>
<div class="rename-edit">
<el-input size="small"
spellcheck="false"
v-model.trim="value"
placeholder=""
:style="{width:(type==="List"?"350px":"90px")}"
@focus="selection($event)">
</el-input>
</div>
</template>
<script>
export default {
methods: {
selection(event) {
const dotIndex = this.value.lastIndexOf(".")
setTimeout(function() {
event.target.selectionStart = 0
event.target.selectionEnd = dotIndex
}, 80)
}
},
mounted() {
this.value = this.selectedData[0].fname
document.querySelector(".rename-edit input").focus()
}
}
</script>after setting this time difference, it is solved, but I don"t know where the time difference is spent.