容器嵌套

#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
using namespace std;
#include <vector>
#include <algorithm>


void myPrint(int v)
{
    cout << v << " ";
}
void test01()
{
    //定义一个大容器 里面放着储存int类型的小容器类型
    vector<vector<int>> v;
    vector<int> v1;
    vector<int> v2;
    vector<int> v3;

    for (int i = 0; i < 5; i++)
    {
        v1.push_back(i);
        v2.push_back(i + 10);
        v3.push_back(i + 100);
    }
    v.push_back(v1);
    v.push_back(v2);
    v.push_back(v3);

    //遍历数据
    for (vector<vector<int>>::iterator it = v.begin(); it != v.end(); it++)
    {
        for_each((*it).begin(), (*it).end(), myPrint);
        cout << endl;
    }
}
int main()
{
    test01();
    system("Pause");
    return 0;
}