STL-容器间的复制list&vector

#include <iostream>
#include <list>
#include <string>
#include <vector>

int main()
{
	//copy list to list
	std::list<std::string> oldList;
	std::list<std::string> newList;
	oldList.push_back("test1");
	oldList.push_back("test2");
	oldList.push_back("test3");
	
	std::copy(oldList.begin(), oldList.end(), std::back_inserter(newList));	

	//copy vector to vector
	std::vector<std::string> oldVector;
	std::vector<std::string> newVector;
	oldVector.push_back("test4");
	oldVector.push_back("test5");
	oldVector.push_back("test6");
	std::copy(oldVector.begin(), oldVector.end(), std::back_inserter(newVector));	

	//copy list to vector
	std::list<std::string> list1;
	std::vector<std::string> vector1;
	list1.push_back("test7");
	list1.push_back("test8");
	list1.push_back("test9");
	std::copy(list1.begin(), list1.end(), std::back_inserter(vector1));	

	//copy vector to list

	std::list<std::string> vector2;
	std::vector<std::string> list2;
	vector2.push_back("test10");
	vector2.push_back("test11");
	vector2.push_back("test12");
	std::copy(vector2.begin(), vector2.end(), std::back_inserter(list2));	
	return 0;
}