系统上电后会有提示音，并且数码管显示0。K1键使数码管进行十六进制减1计数显示，K2键使数码管进行十六进制加1计数显示。数码管显示的同时，发光两极管将显示对应的二进制数。亮表示1，灭表示0-Power system will be prompted after the tone and digital display 0. K1 key for digital control by a count of hexadecimal display, K2 keys for digital control plus 1 count hexadecimal display. At the same time, digital tube display, light emitting polarized tube will show the corresponding binary number. Liang said that 1, to eliminate that 0