ant-design-vue/components/message/demo/duration.md

#### 修改延时 自定义时长 `10s`，默认时长为 `3s`。 #### Customize duration Customize message display duration from default `3s` to `10s`.

<template>
  <a-button @click="success">Customized display duration</a-button>
</template>
<script>
export default {
  methods: {
    success () {
      this.$message.success('This is a prompt message for success, and it will disappear in 10 seconds', 10);
    },
  }
}
</script>