
B .
C .
D .
B .
C .
D .
| 输入 | 输出 | |
| A | B | F |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 1 |
B .
C .
D .