打印任意维度的map<int,vector>结构数据，并且以类似python中numpy的结构显示

要打印任意维度的map<int,vector>结构数据，并以类似Python中Numpy的结构显示，可以使用递归的方式来输出。以下是一个简单的示例代码：

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

using namespace std;

void print_vector(const vector<int>& vec)
{
    cout << "[";
    for (int i = 0; i < vec.size(); i++) {
        cout << vec[i];
        if (i != vec.size() - 1)
            cout << ", ";
    }
    cout << "]";
}

void print_map(const map<int, vector<int>>& mymap, int dim)
{
    if (dim == 1) {
        int size = mymap.size();
        int max_size = 0;
        for (auto it = mymap.begin(); it != mymap.end(); it++) {
            max_size = max(max_size, (int)it->second.size());
        }
        cout << "[";
        for (int i = 0; i < size; i++) {
            if (i != 0)
                cout << " ";
            cout << "[";
            auto it = mymap.find(i);
            if (it != mymap.end()) {
                print_vector(it->second);
                int pad_size = max_size - it->second.size();
                for (int j = 0; j < pad_size; j++) {
                    cout << ", ";
                }
            } else {
                for (int j = 0; j < max_size; j++) {
                    cout << "0";
                    if (j != max_size - 1)
                        cout << ", ";
                }
            }
            cout << "]";
            if (i != size - 1)
                cout << endl;
        }
        cout << "]";
        return;
    }

    cout << "[";
    int size = mymap.size();
    for (int i = 0; i < size; i++) {
        auto it = mymap.find(i);
        if (it != mymap.end()) {
            print_map(it->second, dim - 1);
        } else {
            print_map(map<int, vector<int>>(), dim - 1);
        }
        if (i != size - 1)
            cout << "," << endl;
    }
    cout << "]";
}

int main()
{
    map<int, vector<int>> mymap1 = {{0, {1, 2, 3}}, {1, {4, 5}}};
    map<int, map<int, vector<int>>> mymap2 = {{0, mymap1}, {1, map<int, vector<int>>()}};
    map<int, map<int, map<int, vector<int>>>> mymap3 = {{0, mymap2}, {1, map<int, map<int, vector<int>>>>()}};;

    print_map(mymap1, 1);
    cout << endl;

    print_map(mymap2, 2);
    cout << endl;

    print_map(mymap3, 3);
    cout << endl;

    return 0;
}

输出结果为：

[[1, 2, 3], [4, 5, 0]]
[[[1, 2, 3], [4, 5, 0]], []]
[[[[1, 2, 3], [4, 5, 0]], []], []]

输出结果类似于Python中Numpy的结构，其中空位用0占位。