fix

@@ -29,7 +29,7 @@
         </template>
       </RecycleScrollReveal>
 
-      <a v-if="publishUrl && !share && !noShowPublish" class="publish-btn hover-opacity" :class="{'scroll-opacity': scrolling}" :href="publishUrl">
+      <a v-if="!share" class="publish-btn hover-opacity" :class="{'scroll-opacity': scrolling}" :href="publishUrl || 'javascript:;'" @click="toDownloadPage">
         <span class="avatar-block">
           <WidgetAvatar class="avatar" :src="yoho.context.userHeadIco" :width="70" :height="70"></WidgetAvatar>
         </span>
@@ -124,9 +124,6 @@ export default {
   computed: {
     ...mapYohoState(['yoho']),
     ...mapState(['topicInfo']),
-    noShowPublish() {
-      return this.yoho.context.env.isChat;
-    },
     topicSimpleInfo() {
       return this.topicInfo[this.topicId] || {};
     },
@@ -287,6 +284,9 @@ export default {
       this.CHANGE_TOPIC_FOLLOW({topicId: this.topicId, follow});
       follow && this.reportTopicFollow();
     },
+    toDownloadPage() {
+      !this.publishUrl && this.$links.toDownloadApp();
+    },
     setPageShareInfo({topicName, topicImageUrl, topicDesc}) {
       if (this.share) {
         document && (document.title = topicName || '话题');