1、NSTimer常用的两种方式：scheduled与使用Runloop addTimer
1 2 | [NSTimer scheduledTimerWithTimeInterval:1.0 repeats:YES block:^(NSTimer * _Nonnull timer) { NSLo[......]<p class="read-more"><a href="https://www.yusian.com/blog/project/2018/11/29/1742151443.html">继续阅读</a></p> |