perf: getCurrentPages

pages/API/get-current-pages/get-current-pages.uvue

@@ -4,7 +4,7 @@
     <view class="uni-padding-wrap">
       <button @click="_getCurrentPages">getCurrentPages</button>
       <button class="uni-common-mt" @click="hideAndShow">页面隐藏并显示</button>
-      <view style="padding: 15px 0px">
+      <view v-if="pages.length" style="padding: 15px 0px">
         <text>当前页面栈中 {{ pages.length }} 个页面，列表如下：</text>
         <template v-for="(page, index) in pages" :key="page.route">
           <text style="margin-top: 5px"
@@ -15,7 +15,8 @@
     </view>
   </view>
 </template>
-<script>
+
+<script lang="ts">
 class Page {
 	constructor(public route : string) {
 	}