关于vue 父级不使用子级某模块 (插槽替换)

父级: 

<template><div><MoreSupplements code="Xmgk" message="补充内容越多,越精准"><template #r-btn>xxx</template></MoreSupplements></div>
</template>
<script>
import MoreSupplements from '../components/moreSupplements.vue'
export default {components: {MoreSupplements},
</script>

子级:

<template><div class=""><template><slot name="r-btn"><el-button type="primary" size="mini" @click="handelBack"></el-button></slot></template></div>
</template><script>
export default {props: {message: {type: String,default: '',required: true}},
}
</script>