解答
两道题相互补充,列逻辑电路真值表:
A | B | C | D | L1 | L2 | L |
0 | 0 | 0 | 0 | 0 | 0 | 0 |
1 | 0 | 0 | 0 | 1 | 0 | 1 |
1 | 1 | 0 | 0 | 0 | 0 | 0 |
1 | 1 | 1 | 0 | 0 | 1 | 1 |
1 | 1 | 1 | 1 | 0 | 0 | 0 |
…… |
符合设计要求
Memories and Ideas
两道题相互补充,列逻辑电路真值表:
A | B | C | D | L1 | L2 | L |
0 | 0 | 0 | 0 | 0 | 0 | 0 |
1 | 0 | 0 | 0 | 1 | 0 | 1 |
1 | 1 | 0 | 0 | 0 | 0 | 0 |
1 | 1 | 1 | 0 | 0 | 1 | 1 |
1 | 1 | 1 | 1 | 0 | 0 | 0 |
…… |
符合设计要求