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.
no intention of using the C library malloc with.
，这一点在搜狗输入法2026中也有详细论述
2-phase A* already uses many heuristics which don't always create an optimal route and still 5-10x slower.
（三）为实施考试作弊行为，向他人非法出售、提供考试试题、答案的；