c++ - 如何在C++中进行无限循环？ ( Windows )

Question

我需要一个每秒重复一次的函数。我都试过了

for (;;) {}

和

while(true){}

但是当我运行编译后的程序时，该函数只运行一次。

对不起，这里是完整的功能

#define WINDOWS_LEAN_AND_MEAN
#define _WIN32_WINNT 0x0500 
#include <windows.h> 
#include <iostream> 

// do something after 10 minutes of user inactivity
static const unsigned int idle_milliseconds = 60*10*1000;
// wait at least an hour between two runs
static const unsigned int interval = 60*60*1000;

int main() {

    LASTINPUTINFO last_input;
    BOOL screensaver_active;

    // main loop to check if user has been idle long enough
    for (;;) {
        if ( !GetLastInputInfo(&last_input)
          || !SystemParametersInfo(SPI_GETSCREENSAVEACTIVE, 0,  
                                   &screensaver_active, 0))
        {
            std::cerr << "WinAPI failed!" << std::endl;
            return EXIT_FAILURE;
        }

        if (last_input.dwTime < idle_milliseconds && !screensaver_active) {
            // user hasn't been idle for long enough
            // AND no screensaver is running
            Sleep(1000);
            continue;
        }

        // user has been idle at least 10 minutes
        HWND hWnd = GetConsoleWindow(); 
    ShowWindow( hWnd, SW_HIDE ); 
    system("C:\\Windows\\software.exe");
        // done. Wait before doing the next loop.
        Sleep(interval);
    }
}

这只运行一次而不是继续检查。

Answer 1

while(true){
  //Do something
}

应该可以，但通常你应该避免无限循环而不是做类似的事情

bool isRunning = true;
while( isRunning ){
  //Do something
}

这样你就可以在需要的时候终止循环。