🎈 perf: 没有时间不展示

src/views/userInfo/components/Info.vue

@@ -138,7 +138,7 @@
             @click="editRemark"
           ></i>
         </div>
-        <div class="item rowFlex columnCenter">
+        <div class="item rowFlex columnCenter" v-if="lastTime">
           <div class="rowFlex columnCenter">
             <span class="label">最后交互日期：</span>
             <span>