如何每x秒调用一次函数 [英] How to call a function every x seconds

问题描述

我想编写一个模拟自助餐厅的程序，让客户每10到50秒进入自助餐厅。因此，我希望每10〜50秒调用一次函数，以显示要调用的函数中存在的菜单卡

I want to write a program to simulate a cafeteria in which a customer enters the cafeteria every 10 ~ 50 seconds. So I wanted a function to be called every 10~50 seconds for displaying the menu card which is present in the function to be called

推荐答案

有两种方法：1.异步2.同步

There are two approaches: 1.Asynchronous 2. Synchronous

1. 假设您正在使用Win32，C ++。您可以使用Win32 API SetTimer

UINT_PTR timerid = SetTimer（NULL，0，毫秒，& callback）;

UINT_PTR timerid = SetTimer(NULL, 0, milliseconds, &callback);

如果您愿意一种轮询方法最好使用类似的东西

If you would like a Polling Approach You would better use something like that

  for(;;) 
    {

    Say_Hello();
    // Sleep for 50*1000ms
    Sleep(50000);

    }

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