模拟十进制数到二进制数的转换过程，以LED来模拟各个二进制位，并能以动画方式模拟计数的过程。

　　选择手动方式时，将8个LED变成滑动条中数字的二进制（基数2）表示。例如，如果滑动条设置为数字10（在二进制中表示为00001010=（23）+（21））， LED的1和3点亮，其他LED为熄灭。

　　选择自动方式时，滑动条自动进行加1操作，实现0到255的循环计数；同时8个LED会实时显示滑动条数值所对应二进制数值。当滑动条大于255时，自动回0并重新由0开始计数。

-Analog decimal to binary number conversion to LED to simulate various bits and animated simulation can count process. When you select the manual mode, the eight sliders become digital LED binary (base 2). For example, if the slider is set to the number 10 (expressed in binary as 00001010 = (23)+ (21)), LED lights 1 and 3, the other LED is off. When you select the automatic mode, the slider automatically add an operation to achieve 0-255 cycle count　while eight LED displays in real time the value corresponding to the binary value slider. When the slider is greater than 255, automatically back to 0 and start counting again from 0.