疑点筛查子菜单中的选中状态判断BUG修复

src/main.js

@@ -19,11 +19,7 @@ Vue.prototype.$ifMenu = (menuIndex, subMenuIndex) => {
   }
 };
 Vue.prototype.$ifLeftMenu = (leftMenuIndex) => {
-  if (leftMenuIndex) {
-    return store.state.leftMenuIndex == leftMenuIndex;
-  } else {
-    return false;
-  }
+  return store.state.leftMenuIndex == leftMenuIndex;
 }
 new Vue({
   router,