如何每秒打印一个单词？

Question

How can I print a word once a second while using fopen("filename.txt","r") ?

I searched earlier and found something that used the unistd.h header file, but in my Turbo C++ no such header file exists.

Answer 1

C++11

If your compiler supports C++11, std::thread::sleep_for is the best, cross-platform solution:

#include <chrono>
#include <thread>

std::this_thread::sleep_for(std::chrono::seconds(1));
// or
using namespace std::chrono_literals;
std::this_thread::sleep_for(1s);

If you are forced to use compiler that doesn't support C++, you have to use platform-specific functions:

POSIX

sleep is part of POSIX.1-2001, so it should run on any compliant operating system, including UNIXes, Linux and Mac OS X:

#include <unistd.h>

sleep(1);

Windows

Sleep is part of WinAPI:

#include <windows.h>

Sleep(1000); // Note capital "S" and that you specify time in milliseconds