C++ list容器 赋值和交换

Posted 2021-11-07 行码阁119

 

# include<iostream>
# include<list>
using namespace std;

void printList(const list<int> &L)
{
	for (list<int>::const_iterator it = L.begin(); it != L.end(); it++)
	{
		cout << *it<<" ";

	}
	cout << endl;
}


void test02()
{
	list<int>L1;
	L1.push_back(10);
	L1.push_back(20);
	L1.push_back(30);
	L1.push_back(40);
	L1.push_back(50);
	printList(L1);

	list<int> L2;
	L2 = L1;
	printList(L2);

	list<int> L3;
	L3.assign(L1.begin(), L1.end());
	printList(L3);

	list<int>L4;
	L4.assign(10,1000);
	printList(L4);

}

void test03() //交换
{
	list<int>L1;
	L1.push_back(10);
	L1.push_back(20);
	L1.push_back(30);
	L1.push_back(40);
	L1.push_back(50);

	list<int> L2(10, 100);
	cout << "交换前：" << endl;
	printList(L1);
	printList(L2);

	L1.swap(L2);
	cout << "交换后：" << endl;
	printList(L1);
	printList(L2);



}
int main()
{
	test03();
	system("pause");
	return 0;
}