实现的拨码开关对应显示。由于用乘除法比较费硬件资源，所以输入信号和显示之间用查表对应法来对应的。完成8位拨码开关对用0～255的数位显示。拨码开关从1～8对应个高位到低位，数码管对应显示0到255的数值。拨码开关拨到上面是‘0’，下面是‘1’，可以组合成不同的数据，在数码管上显示对应的数值。-DIP switches to achieve the corresponding display. Comparison of multiplication and division because of charges by the hardware resources, so between the input signal and display method using look-up table corresponding to the corresponding. The completion of eight DIP switches on the use of 0 ~ 255 digital display. DIP switch from 1 to 8 corresponds to a high to low, the corresponding LED display the value 0-255. DIP switch assigned to the above is' 0 ' , the following is a' 1' , can be combined into different data, in the digital display corresponds to control values.