a = [[0, 1, 2, 3], [0, 1, 2, 3], [0, 1, 2, 3], [0, 1, 2, 3]]
目前通過a可以獲取如下格式:
[0,1,2,3]
[0,1,2,3]
[0,1,2,3]
[0,1,2,3]
現在想要通過a得到如下格式:
[0,0,0,0]
[1,1,1,1]
[2,2,2,2]
[3,3,3,3]
如何實現上面的要求?
a = [[0, 1, 2, 3], [0, 1, 2, 3], [0, 1, 2, 3], [0, 1, 2, 3]]
目前通過a可以獲取如下格式:
[0,1,2,3]
[0,1,2,3]
[0,1,2,3]
[0,1,2,3]
現在想要通過a得到如下格式:
[0,0,0,0]
[1,1,1,1]
[2,2,2,2]
[3,3,3,3]
如何實現上面的要求?