新增导航栏；切换页面完成；

src/router/index.js

@@ -75,6 +75,31 @@ const routes = [
             meta: { hidden: true }
           }
         ]
+      },
+      {
+        path: 'platformData',
+        name: 'platformData',
+        meta: { title: '平台数据管理', icon: "TrendCharts", showSidebar: true, isParentNav: true },
+        children: [
+          {
+            path: 'overview',
+            name: 'overview',
+            component: () => import('../views/PlatformData/UserOverview.vue'),
+            meta: { title: '用户数据概览', showSidebar: true }
+          },
+          {
+            path: 'loginStats',
+            name: 'loginStats',
+            component: () => import('../views/PlatformData/UserLoginStats.vue'),
+            meta: { title: '用户类登录统计', showSidebar: true }
+          },
+          {
+            path: 'activityStats',
+            name: 'activityStats',
+            component: () => import('../views/PlatformData/UserActivityStats.vue'),
+            meta: { title: '用户活跃度统计', showSidebar: true }
+          }
+        ]
       }
     ]
   }

src/views/PlatformData/UserActivityStats.vue

@@ -0,0 +1,14 @@
+<template>
+  <div class="user-activity-stats-container">
+    <h1>用户活跃度统计</h1>
+  </div>
+</template>
+
+<script setup>
+</script>
+
+<style scoped>
+.user-activity-stats-container {
+  padding: 20px;
+}
+</style>

src/views/PlatformData/UserLoginStats.vue

@@ -0,0 +1,14 @@
+<template>
+  <div class="user-login-stats-container">
+    <h1>用户类登录统计</h1>
+  </div>
+</template>
+
+<script setup>
+</script>
+
+<style scoped>
+.user-login-stats-container {
+  padding: 20px;
+}
+</style>

src/views/PlatformData/UserOverview.vue

@@ -0,0 +1,14 @@
+<template>
+  <div class="user-overview-container">
+    <h1>用户数据概览</h1>
+  </div>
+</template>
+
+<script setup>
+</script>
+
+<style scoped>
+.user-overview-container {
+  padding: 20px;
+}
+</style>