int>(1, 10));mp.insert(pair<int, int>(3, 30));mp.insert(pair<int, int>(2, 20));if (mp.empty()){cout << "m为空" << endl;}else{cout << "m的大小为: " << mp.size() << endl;}// 交换map<int, int>m2;m2.insert(pair<int, int
// 自定义数据类型排序class Hero{public:// 构造方法Hero(string name, int age) :name(name), age(age) {}// 属性string name;int age;};class Cmp_hero{public:bool operator()(const Hero& h1, const Hero& h2)const {return h1.age < h2.age;}};void test06(){map<Hero, int, Cmp_hero>...