C++ vector 使用

#include "stdafx.h"
#include <iostream>
#include <vector>

using namespace std;

int main()
{
    vector<long> v;
    for (long i=0;i<10000;i++) 
    {
        v.push_back(rand());
    }
    cout << "size = " << v.size() << endl;
    cout << "front = " << v.front() << endl;
    cout << "v[0] = " << v.at(0) << endl;
    cout << "back = " << v.back() << endl;
    cout << "v[9999] = " << v.at(v.size() - 1) << endl;
    cout << "data = " << v.data() << endl;
    cout << "capacity = " << v.capacity() << endl;
    return 0;
}