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std::this_thread::sleep_for

STD：这个[医]线程：：睡眠[医]为

Defined in header ​​
template< class Rep, class Period > void sleep_for( const std::chrono::duration<Rep, Period>& sleep_duration ​(since C++11)

阻止当前线程的执行。至少指定sleep_duration...

用一个稳定的时钟来测量持续时间。此函数的阻塞时间可能超过sleep_duration由于调度或资源争用延迟。

参数

sleep_duration-time duration to sleep

返回值

%280%29

例外

任何由时钟、时间引发的异常[医]在执行%28时钟、时间点和标准库提供的持续时间期间，不要抛出%29。

例

二次

#include <iostream>
#include <chrono>
#include <thread>
 
int main()
{
    using namespace std::chrono_literals;
    std::cout << "Hello waiter" << std::endl;
    auto start = std::chrono::high_resolution_clock::now(
    std::this_thread::sleep_for(2s
    auto end = std::chrono::high_resolution_clock::now(
    std::chrono::duration<double, std::milli> elapsed = end-start;
    std::cout << "Waited " << elapsed.count() << " ms\n";
}

二次

可能的产出：

二次

Hello waiter
Waited 2000.12 ms

二次

另见

sleep_until (C++11)stops the execution of the current thread until a specified time point (function)

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