Vector

#include <iostream>

#include<vector>

using namespace std;

int main()

{

int n;

int a[10];

a[10]=5;

int a[11];

vector <int> a;

a.push_back(1);//在a的末尾添加1

a.erase(a.begin(),a.end());//清空a

for(auto it=a.begin();it!=a.end();it++)

{

cout<<*it<<" ";//利用迭代器遍历a

}

for(int value:a)

{

cout<<value<<" ";

}

}