python - 转换嵌套列表类型

Question

m1 = [[['64,56'], ['77,9'], ['3,55,44,22,11']]]
m2 = [[[64, 56], [77, 9], [3, 55, 44, 22, 11]]]

我如何从“m1”转到“m2”？

标签： pythonlistnested-lists

Answer 1

您可以使用列表推导split：

m1 = [[['64,56'], ['77,9'], ['3,55,44,22,11']]]
m2 = [[int(x) for x in lst[0].split(',')] for lst in m1[0]]

print(m2) # [[[64, 56], [77, 9], [3, 55, 44, 22, 11]]]