实现效果

代码

html

<div class="divrow"><el-checkbox-group v-model="isSendTag" :max="1"><el-checkbox v-for="(item, index) in isSendTagOptions" :key="index" :label="item.value">{{item.label }}</el-checkbox></el-checkbox-group><span style="font-size:medium;margin-left: 1vw;">使用标签发送：</span><el-checkbox-group v-model="tagId"><el-checkbox v-for="(item, index) in tagidOptions" :key="index" :label="item.value" :disabled="isTagDisabled">{{item.label }}</el-checkbox></el-checkbox-group>
</div>

js

//发送是否使用标签选择
var isSendTagOptions = [{"label": "","value": 2
}]var tagidOptions = [{"label": "全部用户","value": 1
}, {"label": "管理员","value": 2
}, {"label": "普通用户","value": 3
}]
const isTagDisabled = computed(() => !isSendTag.value.includes(2));