Ignore the fact that catch usually means exceptions which usually means some kind of failure. A piece of code is running and it just started some work that’s going to take a long time in the background, there’s no point waiting and the program can do something more useful while the stuff happens in the background. It “throws” an exception that is caught by a scheduler multiple layers of function calls up the stack. The scheduler saves the return address into a list of pending work to get back to, and then goes to find something that it can make progress on. Eventually it completes the other work and is signalled that our background task is complete. It pops the return address off the list and jumps to it, continuing the function call exactly where it left off as though nothing happened.
在《我的三观（世界观、价值观、人生观）》这文章里，我讲述了我的世界观、人生观、价值观各是什么，其中只有价值观里，我选择了两个不同的价值观：效益论和义务论，这篇文章里，我将详细讲述为什么我会选择这两个几乎是完全相对立的价值观。，这一点在体育直播中也有详细论述
。关于这个话题，体育直播提供了深入分析
Wilkinson was turned away by police while seeking help four days before she was murdered, Queensland coroner’s court told，详情可参考体育直播
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