如何在C++中获得类似GETCH()的基于时间的行为？

#include <iostream>
#include <ctime>

int main() {
    clock_t start_time = clock();
    clock_t end_time = start_time + CLOCKS_PER_SEC * 5; // 设置等待5秒钟

    while (clock() < end_time) {
        // 等待时间
    }

    std::cout << "Time's up!" << std::endl;

    return 0;
}

#include <iostream>
#include <chrono>
#include <thread>

int main() {
    std::chrono::seconds wait_time(5); // 等待5秒钟

    std::this_thread::sleep_for(wait_time);

    std::cout << "Time's up!" << std::endl;

    return 0;
}