[C++STL]list容器用法介绍

在这里插入图片描述

代码如下:

#include <iostream>
#include <string>
#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 test01()
{list<int>L1;L1.push_back(10);L1.push_back(20);L1.push_back(30);L1.push_back(40);printList(L1);list<int>L2(L1.begin(), L1.end());printList(L2);list<int>L3(L2);printList(L3);list<int>L4(10, 100);printList(L4);}int main()
{test01();return 0;
}

测试结果:
在这里插入图片描述

代码如下:

#include <iostream>
#include <string>
#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 test01()
{list<int>L1;L1.push_back(10);L1.push_back(20);L1.push_back(30);L1.push_back(40);printList(L1);//赋值list<int>L2;L2 = L1;printList(L2);list<int>L3;L3.assign(L2.begin(), L2.end());printList(L3);list<int>L4;L4.assign(10, 100);printList(L4);}//交换
void test02()
{list<int>L1;L1.push_back(10);L1.push_back(20);L1.push_back(30);L1.push_back(40);list<int>L2;L2.assign(10, 100);cout << "交换前" << endl;printList(L1);printList(L2);cout << endl;L1.swap(L2);cout << "交换后" << endl;printList(L1);printList(L2);
}int main()
{test01();test02();return 0;
}

测试结果:

在这里插入图片描述

代码如下:

#include <iostream>
#include <string>
#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 test01()
{list<int>L1;L1.push_back(10);L1.push_back(20);L1.push_back(30);L1.push_back(40);if (L1.empty()){cout << "L1 empty" << endl;}else{cout << "L1 no empty" << endl;cout << "L1 capacity = " << L1.size() << endl;}L1.resize(10);printList(L1);L1.resize(2);printList(L1);}int main()
{test01();return 0;
}

测试结果:
在这里插入图片描述

总结:

在这里插入图片描述

代码如下:

#include <iostream>
#include <string>
#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 test01()
{list<int>l;l.push_back(10);l.push_back(20);l.push_back(30);l.push_front(100);l.push_front(200);l.push_front(300);printList(l);l.pop_back();printList(l);l.pop_front();printList(l);list<int>::iterator it = l.begin();l.insert(++it, 1000);printList(l);it = l.begin();l.erase(++it);printList(l);l.push_back(10000);l.push_back(10000);l.push_back(10000);printList(l);l.remove(10000);printList(l);l.clear();printList(l);}int main()
{test01();return 0;
}

测试结果:

在这里插入图片描述

总结:
在这里插入图片描述

在这里插入图片描述

代码如下:

#include <iostream>
#include <string>
#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 test01()
{list<int>l1;l1.push_back(10);l1.push_back(20);l1.push_back(30);l1.push_back(40);//cout<<l1.at(0)<<endl;//错误，不支持at访问数据//cout<<l1[0]<<endl;//错误，不支持[]方式访问数据cout << "front elem = " << l1.front() << endl;cout << "back elem = " << l1.back() << endl;//list容器的迭代器是双向迭代器，不支持随机访问list<int>::iterator it = l1.begin();//it = it+1;//错误，不可以跳跃访问，即便是+1}int main()
{test01();return 0;
}

测试结果:
在这里插入图片描述

总结:

在这里插入图片描述

代码如下:

#include <iostream>
#include <string>
#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;
}bool cmp(int a, int b)
{return a > b;
}void test01()
{list<int>l;l.push_back(90);l.push_back(30);l.push_back(20);l.push_back(70);printList(l);l.reverse();printList(l);l.sort();printList(l);l.sort(cmp);printList(l);}int main()
{test01();return 0;
}