v-if="_click!=''

src/components/supermap-2.5d.vue

@@ -11,7 +11,7 @@
           <div class="map-txt" v-html="bindPopupHtml">
           </div>
 
-          <el-button size="mini" type="primary" class="sj-icon-btn" @click="openTvwall()">
+          <el-button size="mini" type="primary" class="sj-icon-btn" @click="openTvwall()" v-if="_click!=''">
             查看
           </el-button>
         </div>