C ++ STL 3つの要素（コンテナ|アルゴリズム|イテレータ）最初に01を使用

#include <iostream>
#include <string>
#include <algorithm> // 使用算法 需要引入的头文件
#include <vector>

using namespace std;

void callback(int i) {
	cout << i << endl;
}

void test1() {
	// 操作内置类型
	vector<int> v;
	for (int i = 0; i < 5; ++i) {
		v.push_back(i);
	}
	vector<int>::iterator itBegin = v.begin();
	vector<int>::iterator itEnd = v.end();
	while (itBegin!=itEnd)
	{
		cout << *itBegin << endl;
		++itBegin;
	}

	for (vector<int>::iterator it = v.begin(); it != v.end(); ++it) {
		cout << *it << endl;
	}

	for_each(v.begin(), v.end(), callback);
}


class Person {
public:
	Person(string name, int age) {
		this->m_name = name;
		this->m_age = age;
	}
	string m_name;
	int m_age;
};
void test2() {
	//操作自定义类型
	Person p1("XiaoWang", 18);
	Person p2("XiaoMing", 28);
	Person p3("LaoWang", 48);

	vector<Person> v;
	v.push_back(p1);
	v.push_back(p2);
	v.push_back(p3);

	for (vector<Person>::iterator it = v.begin(); it != v.end(); ++it) {
		cout << (*it).m_name << (*it).m_age <<endl;
	}
}

void test3() {
	// 操作 自定义类型的指针类型
	Person p1("XiaoWang", 18);
	Person p2("XiaoMing", 28);
	Person p3("LaoWang", 48);
	vector<Person*> v;
	v.push_back(&p1);
	v.push_back(&p2);
	v.push_back(&p3);
	
	for (vector<Person*>::iterator it = v.begin(); it != v.end(); ++it) {
		cout << (*it)->m_name << (*it)->m_age << endl;
	}
}

void test4() {
	// 操作嵌套类型
	vector<int> v1;
	vector<int> v2;
	vector<int> v3;
	for (int i = 0; i < 5; i++) {
		v1.push_back(i); // 0 1 2 3 4
		v2.push_back(i + 10); // 10 11 12 13 14
		v3.push_back(i + 100); // 100 101 102 103 104
	}
	vector< vector<int> > vv;
	vv.push_back(v1);
	vv.push_back(v2);
	vv.push_back(v3);

	for (vector<vector<int>>::iterator it = vv.begin(); it!=vv.end(); ++it) {
		for (vector<int>::iterator subit = (*it).begin(); subit != (*it).end(); ++subit) {
			cout << (*subit) << endl;
		}
	}
}


int main()
{
	//test1();
	//test2();
	//test3();
	test4();
	return 0;
}