You may have heard a “big news”: Bootstrap4 merged the PR codenamed #21389, announced that it would give up support for IE9, and use the flexbox flexbox model by default.
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Tag: mystery
Pointer – Using Freeertos on STM32 Pointer Random Assign Mystery (A5A5A5A5 and FFFFFFF) lead to hard failure
I encountered a hard error problem, it appeared at a seemingly random time, the pointer points to address A5 or FF (I allow memory space is much lower than 80000000 and above). It seems A pointer t