节点 | 卖家 | 平台 | 消费者 |
1 |
|
|
|
2 |
|
| 0 |
3 |
|
|
|
4 |
|
| 0 |
5 |
|
|
|
6 |
|
| 0 |
7 |
| 0 | 0 |
8 |
|
| 0 |
9 |
| 0 | 0 |