ant-design-vue/components/notification/demo/custom-icon.md

#### 自定义图标 图标可以被自定义。 #### Customized Icon The icon can be customized to any vue node or (h) => vue node.

<template>
  <a-button type="primary" @click="openNotification">Open the notification box</a-button>
</template>
<script>
  export default {
    methods: {
      openNotification () {
        this.$notification.open({
          message: 'Notification Title',
          description: 'This is the content of the notification. This is the content of the notification. This is the content of the notification.',
          icon: <a-icon type="smile-circle" style="color: #108ee9" />,
        });
      },
    }
  }
</script>