vue3 设置滚动条到底部

// 新建模板
const createtemp = async val => {
  scroolFlag.value = true;
  const params = {
    type: val,
    proId: $route.query.proId,
    createUser: knowledgeBaseToken.value.userId,
    sort: aiInfoConData.value.length
  };
  const response: any = await writeApi.aiInfo.insertTemp(params);
  if (response?.data?.code === '0000') {
    await queryTempList();
    ElMessage.success('新增成功');
    setTimeout(() => {
      containerBoxScrool1.value.setScrollTop(containerBoxScrool.value.offsetHeight + 220);
    }, 300);
  }
};

containerBoxScrool1.value.setScrollTop(containerBoxScrool.value.offsetHeight + 220);