vector容器嵌套容器

#include
#include
#include//标准算法头文件
using namespace std;
//vector容器嵌套容器
void test1() {
	vector>v;
	//创建小容器
	vectorv1;
	vectorv2;
	vectorv3;
	//向小容器中添加数据
	for (int i = 0; i <= 2; i++) {
		v1.push_back(i+1);
		v2.push_back(i+2);
		v3.push_back(i+3);
	}
	//将小容器插入到大容器中
	v.push_back(v1);
	v.push_back(v2);
	v.push_back(v3);
	//通过大容器把所有数据遍历一遍
	for (vector>::iterator it = v.begin(); it != v.end(); it++) {
		//(*it)容器vector
		for (vector::iterator vit = (*it).begin(); vit != (*it).end(); vit++) {
			cout << (*vit) << " ";
		}
		cout << endl;
	}
}

int main() {
	test1();
	system("pause");
	return 0;
}