浅谈c++ vector和map的遍历和删除对象

// Aa.cpp : Defines the entry point for the console application.#include "stdafx.h"#include <vector>#include <map>#include <iostream>using namespace std;int main(int argc, char* argv[]){printf("Hello World!/n");vector<int> a; //创建一个对象a.push_back(1);a.push_back(2);a.push_back(3);vector<int>::iterator iter;for( iter = a.begin(); iter != a.end(); ++iter ) //遍历和删除一个对象{if( (*iter) == 2 ){a.erase(iter);printf("del is item;");break;}}vector<int>* b = new vector<int>();b->push_back(1);b->push_back(2);b->push_back(3);vector<int>::iterator iterr;for( iterr = b->begin() ; iterr!= b->end() ; iterr++)//通过new 一个对象删除{if( (*iterr) == 2 ){b->erase(iterr);printf("del is new item");break;}}map<int,int> mapTest;mapTest[0] = 1;mapTest[1] = 2;mapTest[2] = 3;map<int,int>::iterator mapIter;for( mapIter = mapTest.begin() ; mapIter != mapTest.end() ; ++mapIter ){std::cout << mapIter->first<<"-----"<<mapIter->second<< std::endl;}system("pause");return 0;}