关联容器 Map

#include <iostream>#include <string>#include <map>using namespace std;typedef map<string, int>::value_type pairType;int main(){map<string, int> keywordsMap;keywordsMap.insert(pairType("list", 4));keywordsMap.insert(pairType("scene", 5));keywordsMap.insert(map<string, int>::value_type("oracle", 5));keywordsMap.insert(make_pair("mysql", 5));keywordsMap["stl"] =  3;keywordsMap["database"] = 8;cout << keywordsMap.size() << endl;map<string, int>::iterator it = keywordsMap.begin();for (; it != keywordsMap.end(); it++){cout << "key:" << it->first << ", value:" << it->second << endl;}map<string, int>::key_type kValue;cout << typeid(kValue).name() << endl;map<string, int>::mapped_type vValue;cout << typeid(vValue).name() << endl;map<string, int>::value_type pair;cout << typeid(pair).name() << endl;return 0;}