invoice_fill_h5/src/components/BackButton/index.vue

<template>
  <div class="backIcon">
    <van-icon name="arrow-left" size="32px" color="#6b6c6d" @click="goBack" />
  </div>
</template>

<script setup>
import { useRouter } from 'vue-router'
const router = useRouter();
const goBack = () => {
  router.back();
}
</script>
<style lang="less" scoped>
.backIcon {
  margin-left: 8px;
  margin-top: 8px;
}
</style>