W3School TIY Editor

#include <iostream> #include <deque> using namespace std; int main() { // 创建一个名为 cars 的双端队列，用于存储字符串 deque<string> cars = {"Volvo", "BMW", "Ford", "Tesla"}; // 获取第二个元素 cout << cars.at(1) << "\n"; // 获取第三个元素 cout << cars.at(2) << "\n"; return 0; }