Vue里的v-if没有生效，大家帮忙看看什么原因？

` <view class="uni-flex material-bottom">

    <text class="flexText material-left">事故发生时出险人是否因公外出：</text>
    <radio-group class="radioGroup" @change="radioChange($event,items,'isGoOut')">
        <label>
            <radio value="T" :checked="items.isGoOut == 'T'"/>
            <text>是</text>
        </label>
        <label>
            <radio value="F" :checked="items.isGoOut == 'F'"/>
            <text>否</text>
        </label>
        <label>
            <radio value="Z" :checked="items.isGoOut == 'Z'"/>
            <text>不清楚</text>
        </label>
    </radio-group>
</view>
<view class="uni-flex material-bottom" v-if="items.isGoOut === 'T'">
    <text class="flexText material-left">外出原因：</text>
    <textarea class="textareaClass" v-model="items.goOutReason" cols="30" rows="10" placeholder="点击输入外出原因"></textarea>
</view>
<view class="uni-flex material-bottom" v-if="items.isGoOut === 'T'">
    <text class="flexText material-left">出险人目的地：</text>
    <input class="flexInput" type="text" v-model="items.destination" placeholder="点击输入出险人目的地">
</view>
<view class="uni-flex material-bottom" v-if="items.isGoOut === 'T'">
    <text class="flexText material-left">车辆所有人：</text>
    <input class="flexInput" type="text" v-model="items.ownerName" placeholder="点击输入车辆所有人">
</view>
<view class="uni-flex material-bottom" v-if="items.isGoOut === 'T'">
    <text class="flexText material-left">汽车保险所属保险公司：</text>
    <input class="flexInput" type="text" v-model="items.insuranceCompany" placeholder="点击输入所属保险公司">
</view>

</view>
`

这段代码我希望单选框选择T的时候下面四个输入框会被显示，选择其他隐藏掉