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我要展開一個二維數組:如何基於一些
num = 3
array = [0,0,0,0,0]
成爲這樣的:
array = ([0,0,0,0,0],[0,0,0,0,0],[0,0,0,0,0])
我已經試過這樣:
array = ([0,0,0,0,0],)*num
和這樣的:
array = [[0,0,0,0,0]]*num
但是當我設置值時,它將它設置在任何地方。
num = 3
array = [[0,0,0,0,0]]*num
print(array)
array[0][0] = 1
array[1][1] = 2
print(array)
[[0, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0]]
[[1, 2, 0, 0, 0], [1, 2, 0, 0, 0], [1, 2, 0, 0, 0]]
當它應該是:
[[0, 0, 0, 0, 0], [0, 0, 0, 0, 0], [0, 0, 0, 0, 0]]
[[1, 0, 0, 0, 0], [0, 2, 0, 0, 0], [0, 0, 0, 0, 0]]