TopTip 顶部消息提示 ```html <h2 class="item-title">top-tip</h2> <div class="local-region"> <top-tip v-model="show" entry-direction="down" content="顶部消息提示内容"/> 参考文案 </div> <h-button class="button-class" type="rimless" shadow @click.native="showTopTip">TopTip</h-button> ```