We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Megan Wollerton If you’ve ever found yourself dashing through a rainstorm to ...
* * delay() 会让 CPU 空转等待，期间不能执行其他代码，称为“阻塞”。 * * 硬件定时器由独立硬件模块驱动，到时间就触发中断 ...
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