C++，程式休眠，暫停1s

#include <iostream>
#include <thread>
#include <chrono>
using namespace std;

int main()
{
    cout << "C++11" << endl;
    std::this_thread::sleep_for(std::chrono::milliseconds(100)); // 100ms
    std::this_thread::sleep_for(std::chrono::seconds(100));      // 100s

    cout << "C++14，支援字面量" << endl;
    std::this_thread::sleep_for(100ms);     // 100ms
    std::this_thread::sleep_for(100s);      // 100s

    return 0;
}