在Julia中获取嵌套数组的形状

function get_nested_array_shape(arr)
    if !isa(arr, Array)
        return ()
    end
    
    shape = ()
    for subarr in arr
        subarr_shape = get_nested_array_shape(subarr)
        shape = (shape..., subarr_shape)
    end
    
    return size(arr), shape
end

# 示例用法
nested_array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
arr_shape, nested_shape = get_nested_array_shape(nested_array)

println("数组形状：", arr_shape)
println("嵌套数组形状：", nested_shape)

数组形状：(3, 3)
嵌套数组形状：((3,), (3,), (3,))