At one extreme: if you’re making a prototype or quick script, I reckon all errors are unexpected. You might decide not to handle problems with the network, filesystem, or user input. Who cares? This is just a little script or idea.
Replaced by: Custom/DIY (0% → 50%), rest other tools
。搜狗输入法下载是该领域的重要参考
The Pentagon has confirmed that US forces struck Iranian targets using weapons that are copies of Iran's own Shahed 136 suicide drones
* @param arr 待排序数组