STL学习（一）map容器学习

// test_STL.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#include<iostream>#include <map>#include <string>#include <utility>using namespace std;int _tmain(int argc, _TCHAR* argv[]){cout << "enchanter: " <<endl;     /*constructor-1*/    map<string,int> word_count;/*insert-1*/word_count["strength"] = 100;cout << "strength: " << word_count["strength"] <<endl;/*insert-2*/pair<string ,int> enchanter("magic point",500);pair<map<string,int>::iterator,bool> result;result = word_count.insert(enchanter);cout << "magic point: " << word_count["magic point"] <<" bool: "<<result.second<<endl;cout << "iterator:value first : "<< result.first->first<<endl;cout << "iterator:value second : "<< result.first->second<<endl;/*insert-3*/word_count.insert(make_pair(string("defense"),50));//word_count.insert(make_pair("defense",50)); in VS2010,it's ok.in VC6,it's wrongcout << "defense: " << word_count["defense"] <<endl;/*bug fix:word_count.insert(make_pair("defense",50));编译器把coll.insert(make_pair("defense",1));中的"defense"认成const char[]类型了，与make_pair(string,string)不匹配修改为：word_count.insert(make_pair(string("defense"),50));*/        cout <<endl;    cout << "female_enchanter: " <<endl;    /*constructor-2*/map<string,int> female_enchanter(word_count);map<string,int>::iterator map_it = female_enchanter.begin();while(map_it != female_enchanter.end()){cout<<map_it->first<<" : "<<map_it->second<< endl;++map_it;}/*bug fix:error C2679: binary '<<' : no operator defined which takes a right-hand operand of type 'const class std::basic_string<char,struct std::char_traits<char>,class std::all将#include<iostream.h> 修改为#include<iostream>*/map<string,int>::const_iterator map_begin = female_enchanter.begin();map<string,int>::const_iterator map_end = female_enchanter.end();    cout <<endl;    cout << "Sorcerer_Apprentice: " <<endl;     /*constructor-3*/map<string,int> Sorcerer_Apprentice(map_begin, map_end);map<string,int>::iterator map_iterator = Sorcerer_Apprentice.begin();while(map_iterator != Sorcerer_Apprentice.end()){cout<<map_iterator->first<<" : "<<map_iterator->second<< endl;++map_iterator;}/*count return 1:exist.0:not exist*/string str1 = "drunken brawler";if(Sorcerer_Apprentice.count(str1)){cout << str1 << "is exist in Sorcerer_Apprentice"<< endl;}else{cout << str1 << "is not exist in Sorcerer_Apprentice"<< endl;}/*find*/string str2 = "defense";if(Sorcerer_Apprentice.find(str2) != Sorcerer_Apprentice.end()){cout << str2 << " is exist in Sorcerer_Apprentice"<< endl;}else{cout << str2 << " is not exist in Sorcerer_Apprentice"<< endl;}system("Pause");return 0;}