c++之map操作

#include <iostream>
#include<map>
using namespace std;
int main() {
   
    map<string,int> nameAge;
    nameAge["sun"]=232;
    nameAge["sun2"]=23;
    nameAge["sun1"]=34;
　　//map 查找
    map<string,int> ::const_iterator it =nameAge.find("sun");
    if(it!=nameAge.end()){
        cout<<it->second;
    }
    return 0;
}