【已关闭】百度小程序异步获取数据v-for渲染不了

<view class="book_list">
<view class="left">
<view v-for="(item, index) in bookData" :key="index" v-if="index % 2 == 0">
<view class="item">
<image :src="item.coverPicUrl" mode="widthFix"></image>
<view class="title">{{item.title}}</view>
</view>
</view>
</view>
<view class="right">
<view v-for="(item, index) in bookData" :key="index" v-if="index % 2 == 1">
<view class="item">
<image :src="item.coverPicUrl" mode="widthFix" class="animated flipInY"></image>
<view class="title">{{item.title}}</view>
</view>
</view>
</view>
</view>

uni.request({
url: 'url',
data: {orderField: 'updateTime'},
method: 'GET',
complete: (res) => {
this.bookData = res.data.data.navelList || [];
console.log(this.bookData, '---------------异步数据');
}
})

数据打印有的，直接{{bookData}}这样展示也有数据