W3School TIY Editor

#include <iostream> #include <map> using namespace std; int main() { // 创建存储人员姓名和年龄的映射表 map<string, int> people = { {"Bill", 19}, {"Steve", 32}, {"Elon", 26} }; // 获取键 "Elon" 对应的值 cout << "Elon 的年龄是: " << people.at("Elon") << "\n"; // 获取键 "Steve" 对应的值 cout << "Steve 的年龄是: " << people.at("Steve") << "\n"; return 0; }