需要将数据打印成类似python中的numpy

要将数据打印成类似Python中的numpy数组格式，可以对上面的递归打印进行修改。具体实现可以参考以下示例代码：

#include <iostream>
#include <map>
#include <vector>
#include <typeinfo>

template<typename T>
void print(const T& t, int depth = 0)
{
    bool is_leaf = true;
    for (auto i : t)
    {
        if (typeid(i.second).name()[0] != 'N')
        {
            is_leaf = false;
            break;
        }
    }

    if (is_leaf)
    {
        std::cout << "[";
        for (auto i : t)
        {
            std::cout << i.second << ", ";
        }
        std::cout << "]" << std::endl;
    }
    else
    {
        std::cout << "[" << std::endl;
        for (auto i : t)
        {
            for (int j = 0; j < depth + 1; ++j) std::cout << "  ";
            std::cout << "[";
            std::cout << i.first << ", ";
            print(i.second, depth + 1);
            for (int j = 0; j < depth + 1; ++j) std::cout << "  ";
            std::cout << "],";
            std::cout << std::endl;
        }
        for (int j = 0; j < depth; ++j) std::cout << "  ";
        std::cout << "]" << std::endl;
    }
}

int main()
{
    std::map<std::string, std::vector<std::map<int, std::string>>> data = {
        {"A", {
            {
                {1, "A1"},
                {2, "A2"},
                {3, "A3"}
            },
            {
                {4, "A4"},
                {5, "A5"},
                {6, "A6"}
            }
        }},
        {"B", {
            {
                {1, "B1"},
                {2, "B2"}
            },
            {
                {3, "B3"},
                {4, "B4"},
                {5, "B5"}
            },
            {
                {6, "B6"}
            }
        }}
    };

    print(data);

    return 0;
}

这段代码会先判断当前层级的数据中是否包含非叶子节点，如果是，则递归打印下一级数据；否则，打印当前层级的所有叶子节点。对于非叶子节点，我们在打印前加上了中括号，并在每个元素前加上了逗号，以便生成类似numpy数组的格式。