例3解答 CD CD X输出 AB00011110 Y输出AB00110 000000 00111 0100 0 0000 1000 10 000 XAB+AC+BCD Y=AC+AB+ bcD CD Z输出AB、0010 000000 010001 110000 Z=ABCD+ABCD 100100例3解答 X输出 0 0 0 0 0 0 1 0 1 1 1 1 0 0 1 1 00 01 11 10 00 01 11 10 AB CD X=AB+AC+BCD Y输出 1 1 1 1 1 1 0 0 0 0 0 0 1 0 0 0 00 01 11 10 00 01 11 10 AB CD Y = AC + AB+ BCD Z输出 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 00 01 11 10 00 01 11 10 AB CD Z = ABCD+ ABCD