C++STL（标准模板库）之顺序容器：vector

向量vector

是一个线性顺序结构。相当于数组，但其大小可以不预先指定，并且自动扩展。它可以像数组一样被操作，由于它的特性我们完全可以将vector 看作动态数组。

std::vector::erase

iterator erase (const_iterator position);
iterator erase (const_iterator first, const_iterator last);

// erasing from vector
#include <iostream>
#include <vector>

int main ()
{
    std::vector<int> myvector;
    // set some values (from 1 to 10)
    for (int i=1; i<=10; i++) 
        myvector.push_back(i);
    
    // erase the 6th element
    myvector.erase (myvector.begin()+5);

    // erase the first 3 elements:
    myvector.erase (myvector.begin(),myvector.begin()+3);

    std::cout << "myvector contains:";
    for (unsigned i=0; i<myvector.size(); ++i)
        std::cout << ' ' << myvector[i];
    std::cout << '\n';

    return 0;
}