1. 创建字典

#include<iostream>
#include<map>
#include<string>using namespace std;int main(){map<string, int> mymap;}

2. 赋值
   2.1 指定元素赋值

mymap["abc"] = 1;

2.2 添加键值对

mymap.insert(make_pair("bcd", 2));

3. 字典的顺序输出
   3.1 map<string, int>::iterator it = mymap.begin()

        for(map<string, int>::iterator it = mymap.begin(); it != mymap.end(); it++){if(it -> second > 1){cout << it -> first << " " << it->second << endl;}}

3.2 auto it = mymap.begin()

    for(auto it = mymap.begin(); it != mymap.end(); it++){if(it -> second > 1){cout << it -> first << " " << it->second << endl;}}