Linux POSIX semaphores use sem_wait to suspend the calling thread until the semaphore has a non-zero count.

Linux POSIX信号使用sem_wait来挂起发出调用的线程，直到信号拥有了非零的计数值。

youdao

A zero count means that the point lies outside the fill or clip area.

计数为零意味着该点在填充或剪辑区域的外部。

youdao

And also that we know that the zero does not count as a node, if per se I actually had managed to hit zero in drawing that, so the correct answer would be the bottom one there.

另外你们要知道零点不是节点，假设说我确实把零点画成０了，那正确的结果就是底下这个。

麻省理工公开课 - 化学原理课程节选

> David: Yeah, it's going to count from zero 100 up to one hundred percent.

>，大卫：是的，它将从0开始,计数到。

哈佛公开课 - 计算机科学课程节选

And no, it wasn't. When he took away the gold foil the count rate went down to zero.

看看是不是从,其他地方打进来的alpha粒子,但不是，当他拿走。

麻省理工公开课 - 化学原理课程节选

Mr. MERRITT: (Singing) In whole of the soul of Count Olaf, there's no love when you see Count Olaf count to zero, then scream and run away.

NPR: Lemony Snicket's 'Tragic Treasury'

Thieves can count to zero as well as anybody.

FORBES: And for the CDs I can give you, let's see... nothing.

And its customer count has zoomed from zero to 100 in the first nine months of 2012.

FORBES: Totango's 9-Month Surge from Scratch to 100 Corporate Customers