在python中创建动态大小的多维列表

Question

我想在Python中构建一个多维列表，其中维度的数量在编写时（开发时）是未知的，但在运行时动态确定。

示例：如果我想创建一个n维网格，其中每个网格点对应于我创建的对象。 在这里，我想知道程序运行时改变n的算法。

Answer 1

纯Python解决方案：

n = 2
f = [[0.0 for _ in range(2)] for _ in range(3)]
f[0][0] = 8
print (f)

n = 3
f = [[[0.0 for _ in range(2)] for _ in range(3)] for _ in range(3)]
f[0][0][0] = 5
print (f)

numpy解决方案：

  

快速入门教程：array-creation

n = 2
f = np.zeros((2, 3,))

n = 3
f = np.zeros((2, 3, 3))

  

输出：

     

[[8,0.0]，[0.0,0.0]，[0.0,0.0]]
     [[[5,0.0]，[0.0,0.0]，[0.0,0.0]]，[[0.0,0.0]，[0.0,0.0]，[0.0,0.0]]，[[0.0,0.0]，[0.0 ，0.0]，[0.0,0.0]]]