pc搜索等新功能及优化

src/views/findeventpage/eventlive.vue

 <template>
     <div>
         <iframe name = "child" id = "child" src="live.html" frameborder="0" scrolling="no" style="position:related;top: 2.8px;left: 0px;width: 100%;height: 100vh;border: medium none;"></iframe>
-        <div v-if="$i18n.locale=='zh-CN'" @click="isuserClick" class="event_iconchange">
+        <div v-if="$i18n.locale=='zh-CN'&&!userClick" @click="isuserClick" class="event_iconchange">
             <el-tooltip class="item" effect="dark" content="互换名片，拓展人脉圈" placement="top-start">
                 <img class="event_iconchange_img" src="../../assets/img/changeImg.png" alt="">
             </el-tooltip>