feat(projects): 添加页面缓存、记录在tab中的缓存页面的滚动条位置

src/utils/router/cache.ts

@@ -0,0 +1,35 @@
+import type { RouteRecordRaw } from 'vue-router';
+
+/**
+ * 获取缓存的路由对应组件的名称
+ * @param routes - 转换后的vue路由
+ */
+export function getCacheRoutes(routes: RouteRecordRaw[]) {
+  const cacheNames: string[] = [];
+  routes.forEach(route => {
+    // 只需要获取二级路由的缓存的组件名
+    if (hasChildren(route)) {
+      route.children!.forEach(item => {
+        if (isKeepAlive(item)) {
+          cacheNames.push(item.name as string);
+        }
+      });
+    }
+  });
+  return cacheNames;
+}
+
+/**
+ * 路由是否缓存
+ * @param route
+ */
+function isKeepAlive(route: RouteRecordRaw) {
+  return Boolean(route?.meta?.keepAlive);
+}
+/**
+ * 是否有二级路由
+ * @param route
+ */
+function hasChildren(route: RouteRecordRaw) {
+  return Boolean(route.children && route.children.length);
+}