废话少说，上干货：

• template

<el-input ref="inputRef"/>
<el-time-piker ref="timepikerRef"/>

• js:

import { ref } from 'vue'

• el-inpt:

const inputRef = ref(null)
input.value.focus()

• el-time-piker:

const timepikerRef = ref(null)
timepikerRef.value.focus(true)