#pragma warning (disable:4786)#include <map>
#include <string>
#include <iostream>using namespace std;int main()
{map<int,string> studentMessage;map<int,string>::iterator iter;studentMessage.insert(pair<int , string>(54090101,"Mike"));studentMessage.insert(pair<int , string>(54090102,"Sam"));studentMessage.insert(pair<int , string>(54090103,"Jake"));//begin获取map中的第一个元素的迭代器,并且等于rend//end获取map中的最后一个元素下一位置的迭代器，并且等于rbegincout<<"迭代器中的元素如下："<<endl;for(iter = studentMessage.begin() ; iter != studentMessage.end() ; ++iter){cout<<iter->first<<" "<<iter->second<<endl;}//看看max_size和size的值得意义cout<<"map 的 max_size 的值："<<studentMessage.max_size()<<endl;cout<<"map 的 size 的值："<<studentMessage.size()<<endl;//看看empty和clear的使用
    studentMessage.clear();if(studentMessage.empty()){cout<<"The map is Empty !!"<<endl;}else{cout<<"The map is not Empty !!"<<endl;}return 0;
}

#pragma warning (disable:4786)#include <iostream>
#include <string>
#include <map>using namespace std;int main()
{map<int,string> studentMessage;studentMessage.insert(map<int,string>::value_type(54090101,"Mike"));studentMessage.insert(map<int,string>::value_type(54090102,"Sam"));studentMessage.insert(map<int,string>::value_type(54090103,"Jake"));if(studentMessage.find(54090101) != studentMessage.end()){cout<<"find success !!"<<endl;}if(studentMessage.count(54090101)){cout<<"count success !!"<<endl;}return 0;
}

#pragma warning(disable:4786)#include <iostream>
#include <string>
#include <map>using namespace std;int main()
{/*map<int,string> tmp;map<int,string>::const_iterator iter1,iter2;tmp.insert(pair<int,string>(54090104,"Bob"));tmp.insert(pair<int,string>(54090105,"Ben"));iter1 = tmp.begin();iter2 = tmp.end();*/map<int,string> studentMessage;map<int,string>::iterator iter;//向map中插入数据studentMessage.insert(pair<int,string>(54090101,"Mike"));studentMessage.insert(pair<int,string>(54090101,"MIKE"));//重复插入studentMessage.insert(map<int,string>::value_type(54090102,"Sam"));studentMessage.insert(map<int,string>::value_type(54090102,"SAM"));//重复插入studentMessage[54090103] = "Jake";studentMessage[54090103] = "JAKE";//重复插入//为了测试删除，先插入两个数据,看插入结果主要看上面的插入方式studentMessage[54090104] = "Bob";studentMessage[54090105] = "Ben";cout<<"完成插入后map中的数据："<<endl;for(iter = studentMessage.begin() ; iter != studentMessage.end() ; ++iter){cout<<iter->first<<" "<<iter->second<<endl;}//从map中删除数据iter = studentMessage.begin();studentMessage.erase(iter);cout<<"利用迭代器删除map中第一个元素："<<endl;for(iter = studentMessage.begin() ; iter != studentMessage.end() ; ++iter){cout<<iter->first<<" "<<iter->second<<endl;}studentMessage.erase(54090102);cout<<"利用键值删除map中的第一个元素："<<endl;for(iter = studentMessage.begin() ; iter != studentMessage.end() ; ++iter){cout<<iter->first<<" "<<iter->second<<endl;}studentMessage.erase(studentMessage.begin(),studentMessage.end());cout<<"利用范围迭代器删除map中的所有数据："<<endl;for(iter = studentMessage.begin() ; iter != studentMessage.end() ; ++iter){cout<<iter->first<<" "<<iter->second<<endl;}return 0;
}