说明： Delphi编写的数码管倒计时器，只要输出一数字（以秒计算），有四个按钮选择
(Preparation countdown Delphi digital control device, as long as the output of a number (in seconds), there are four buttons to select)
文件列表：
数码管倒计数器
..............\0.bmp
..............\1.bmp
..............\10.bmp
..............\11.bmp
..............\12.bmp
..............\2.bmp
..............\3.bmp
..............\4.bmp
..............\5.bmp
..............\6.bmp
..............\7.bmp
..............\8.bmp
..............\9.bmp
..............\Project0704200125.cfg
..............\Project0704200125.dof
..............\Project0704200125.dpr
..............\Project0704200125.exe
..............\Project0704200125.res
..............\Project0704200125.~dpr
..............\Unit0704200125.dcu
..............\Unit0704200125.ddp
..............\Unit0704200125.dfm
..............\Unit0704200125.pas
..............\Unit0704200125.~ddp
..............\Unit0704200125.~dfm
..............\Unit0704200125.~pas
