没有延时时间，每个计数器上电后，计数输出是随机的，这样若干LED也许是亮的。

Without the delay time, each counter powers up with a random output count such that several LEDs may be on.

youdao

没有延时时间，每个计数器上电后，计数输出是随机的，这样若干LED也许是亮的。

Without the delay time, each counter powers up with a random output count such that several LEDs may be on.

youdao