c++ vector 使用方法

#include "stdafx.h"
#include <iostream>
#include <vector>
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
    /****数组用法****/
    int iar[6] = {-12,-2,0,8,5,4};
    vector<int> ivec(10,3);
    vector<int> ivec1(iar+1,iar+4);
    vector<int> ivec2(ivec1);
    
    vector<int>::iterator it = ivec1.begin();
    for(int ix = 0; ix < ivec1.size();)
    {
        cout<<ivec1[ix]<<endl;
        if(ivec1[ix] == 0)
        {
            it += ix;
            ivec1.erase(it);
            it = ivec1.begin();
        }
        else
        {
            ix++;
        }
    }

    for(int ix = 0; ix < ivec1.size();ix++)
    {
        cout<<ivec1[ix]<<endl;
    }

    /****STL用法****/

    vector<string> ivec3;
    ivec3.push_back("w1");
    ivec3.push_back("w2");
    ivec3.push_back("w3");
    for(vector<string>::iterator it = ivec3.begin(); it < ivec3.end();)
    {
        cout<<*it<<endl;
        ////字符串判等  第一种方式
        //if(*it == "w3")
        //{
        //    cout<<"*it == \"s3\""<<endl;
        //    it++;
        //}
        //字符串判等 第二种方式
        if(strcmp(it->c_str(), "w3") == 0)
        {
            cout<<"strcmp(it->c_str(),\"w3\")"<<endl;
            int si = it - ivec3.begin();
            ivec3.erase(it);//erase掉it以后，it无法访问，需要重新设置it
            it = ivec3.begin() + si;
        }    
        else
        {
            it++;
        }
    }

    for(vector<string>::iterator it = ivec3.begin(); it != ivec3.end();it++)
    {
        cout<<*it<<endl;
    }
}