更新：增加“我的书单”功能

pages/user/order/index.vue

@@ -1,21 +1,13 @@
 <template>
   <view class="order-page">
     <!-- 自定义导航栏 -->
-    <view class="custom-navbar" :style="{ height: navbarHeight }">
-      <view class="navbar-content" :style="{ paddingTop: statusBarHeight + 'px' }">
-        <view class="navbar-left" @click="goBack">
-          <wd-icon name="arrow-left" size="18px" color="#333" />
-        </view>
-        <text class="navbar-title">{{ $t('user.myOrders') }}</text>
-      </view>
-    </view>
+    <nav-bar :title="$t('user.myOrders')"></nav-bar>
 
     <!-- 订单列表 -->
     <scroll-view 
       v-if="orderList.length > 0"
       scroll-y 
       class="order-scroll"
-      :style="{ paddingTop: navbarHeight }"
       @scrolltolower="loadMore"
     >
       <view class="order-list">