通过具名 slot (插槽)来显示Dialog 的标题
<el-dialog :visible.sync="dialogVisible">
<h1 slot="title" class="header-title">
{{ rowNotice.noticeTitle }}
</h1>
<div class="notice_content">{{ rowNotice.content }}</div>
<span slot="footer" class="dialog-footer">
<el-button type="primary" @click="dialogVisible = false">确 定</el-button>
</span>
</el-dialog>
可参考以下网址:
https://blog.csdn.net/hbjiankely/article/details/88218237