* @param arr 待排序数组
This fragmentation hurts portability. Code that performs well on one runtime may behave differently (or poorly) on another, even though it's using "standard" APIs. The complexity burden on runtime implementers is substantial, and the subtle behavioral differences create friction for developers trying to write cross-runtime code, particularly those maintaining frameworks that must be able to run efficiently across many runtime environments.
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Москвичей предупредили о резком похолодании09:45
Denmark’s intelligence services have warned that a foreign power may try to sway the general election on 24 March, saying the main threat was from Russia over support for Ukraine but also citing the chaos caused by US efforts to seize Greenland.