c++ - for ループの速度を遅くする

Question

for(;;) {
    int rand_number = rand() % 2;
    cout << rand_number;
}

これらのループは、マトリックス ムービー (LOL) のように画面全体に 1 と 0 を生成しますが、コードは非常に高速に実行されます。数値をゆっくり表示させる方法はありますか?

Answer 1

Sleep(3000);たとえば、3000ミリ秒待機するために使用します

#include <iostream>
#include <stdlib.h>
#include <Windows.h>

using namespace std;

int main(int argc,char**argv){
    cout<<"a"<<endl;
    Sleep(3000);
    cout<<"b"<<endl;

    return 0;
}

Answer 2

チェックアウトusleep。睡眠も使えますが、遅すぎると思います。

USLEEP(3)                BSD Library Functions Manual                USLEEP(3)

NAME
     usleep -- suspend thread execution for an interval measured in microseconds

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <unistd.h>

     int
     usleep(useconds_t useconds);

DESCRIPTION
     The usleep() function suspends execution of the calling thread until either useconds microseconds have elapsed or a signal is delivered to the thread whose action
     is to invoke a signal-catching function or to terminate the thread or process.  The actual time slept may be longer, due to system latencies and possible limita-
     tions in the timer resolution of the hardware.

     This function is implemented, using nanosleep(2), by pausing for useconds microseconds or until a signal occurs.  Consequently, in this implementation, sleeping
     has no effect on the state of process timers and there is no special handling for SIGALRM.

RETURN VALUES
     The usleep() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

ERRORS
     The usleep() function will fail if:

     [EINTR]            A signal was delivered to the process and its action was to invoke a signal-catching function.

SEE ALSO
     nanosleep(2), sleep(3)

HISTORY
     The usleep() function appeared in 4.3BSD.

BSD                            February 13, 1998                           BSD

Answer 3

準備が整うまで停止したい場合は、無意味な cin をランダムに挿入できます。リターンキーを押すまで、そこで入力を待ちます。