为什么 真机测试 ios 上 v-else 不显示呢 h5可以

<template>
<div class="">
<view class="leavelMessageRember-item1" v-if="index<2" v-for="(secondPl,index) in ldsdd">
<view class="contentName" style="font-size: 13px;">
<!-- {{secondPl.userName}} 回复 @{{parentName}} -->
</view>
<view class="content">
<!-- {{secondPl.message}} -->
</view>
</view>
<view class="" @click="zhankaiHuiFu" v-else style="padding-left: 5px;color: #aaaaaa;background-color: aliceblue;font-size: 17px;height: 20px;">
<!-- 共{{secondComments.length}}条回复 -->
5
</view>
</div>
</template>

<script>
export default {
props: ['secondComments','parentName','totalOne'],
name: '',
data() {
return {
ldsdd:[{},{},{}]
}
},