视频教学第8节中,动态格间,逐层累计,为什么用公式d2[b2:-1]+c2,而不是d2[c2:-1]+c2或是d2[a2:-1]+c2. |
最佳回答 |
||||
0
|
|
|||
0
|
|
|||
0
|
|
|||
0
|
|
|||
0
|
|
|||
0
|
|
|||
0
|
|
|||
0
|
|
|||
0
|
|
|||
0
|
|