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光阴似箭催人老，日月如移越少年。
Is it cross-terminal in real time? If you want to cross terminals, you need to use socket. If you update within the App, you can use notifications, Android is BroadCast, ios is NSNotificationCenter
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Is it cross-terminal in real time? If you want to cross terminals, you need to use socket.
If you update within the App, you can use notifications, Android is BroadCast, ios is NSNotificationCenter