feat

src/views/components/Structure.vue

@@ -9,7 +9,7 @@
           <BacktopIcon />
         </div>
       </t-tooltip>
-      <t-tooltip content="置顶" placement="top">
+      <t-tooltip content="置底" placement="top">
         <div class="icon-box" @click="changeActivLayer('bottom')">
           <Download1Icon />
         </div>