此例的真值表(C=1) A A3A2A1 Yo 00000000 0000 01010 00 00 0 11000000 000000 001100 Y01010 11111 00001 01010 00000000 00000 11 01010 00 00 0 0 结果: C=0时输出与输入相同;C=1时输入二进制码,输出格雷 码此例的真值表 (C=1) A3 A2 A1 A0 Y3 Y2 Y1 Y0 A3 A2 A1 A0 Y3 Y2 Y1 Y0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 1 0 1 0 0 0 1 0 0 0 1 1 0 0 1 1 1 0 1 1 0 0 1 1 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 0 1 1 0 0 1 1 0 1 1 1 0 0 1 1 0 0 1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 结果： C=0时输出与输入相同；C=1时输入二进制码，输出格雷 码