4dkankan-components/docs/examples/date-picker/custom-prefix-icon.vue

<template>
    <div class="demo-date-picker">
        <div class="block">
            <span class="demonstration">set prefix-icon</span>
            <el-date-picker v-model="value1" type="date" placeholder="Pick a day" :prefix-icon="customPrefix" />
        </div>
    </div>
</template>

<script lang="ts" setup>
import { h, ref, shallowRef } from 'vue'

const value1 = ref('')

const customPrefix = shallowRef({
    render() {
        return h('p', 'pre')
    },
})
</script>
<style scoped>
.demo-date-picker {
    display: flex;
    width: 100%;
    padding: 0;
    flex-wrap: wrap;
}
.demo-date-picker .block {
    padding: 30px 0;
    text-align: center;
    border-right: solid 1px var(--el-border-color);
    flex: 1;
}
.demo-date-picker .block:last-child {
    border-right: none;
}
.demo-date-picker .demonstration {
    display: block;
    color: var(--el-text-color-secondary);
    font-size: 14px;
    margin-bottom: 20px;
}
</style>