My brain has two parts : the left and the right.
My left brain has nothing right, and my right brain has nothing left..
其实我想说：
网页倒计时
Countdown倒计时模块来自 https://www.tickcounter.com/ 。
类似的还有：logwork, countdownmail,等。logwork的很漂亮,可惜有个bug，目标时间设在很久以后的话，它给出的代码需要手工调整才能输出正确。
Linux默认系统目录简介
