Nano-Reef Community - Keep a small saltwater reef tank of your own! Join the Nano-Reef Community, a forum of saltwater reef aquarium hobbyists sharing experiences building small nano reef tanks Find an extensive library of knowledge in our articles and forum discussions, inspiring monthly featured marine aquariums, and guidance from supportive hobbyists as you build a reef tank of your own
iOS 中的后台应用刷新到底有什么用？关了影响明显吗？怎么判断要不要关或开？ 看下面的小字部分： Allow apps to refresh their content when on WLAN or cellular in the background Turning off apps may help preserve battery life 简单来说，就是打开以后，应用可以在后台获得CPU调度，做一些特定的任务。 以微信为例，iOS系统是不需要它后台直接获取推送的消息的。事实上，你手机收到微信消息的弹窗