linux c++ pause

int pause();

#include <iostream>
#include <unistd.h>
#include <signal.h>

// 信号处理函数
void signal_handler(int signum) {
    std::cout << "Received signal " << signum << ". Resuming execution." << std::endl;
}

int main() {
    // 注册信号处理函数
    signal(SIGINT, signal_handler);

    std::cout << "Press Ctrl+C to resume execution." << std::endl;

    // 暂停程序执行
    pause();

    std::cout << "Program resumed." << std::endl;

    return 0;
}

#include <iostream>
#include <unistd.h>
#include <signal.h>

// 信号处理函数
void signal_handler(int signum) {
    std::cout << "Received signal " << signum << ". Resuming execution." << std::endl;
}

int main() {
    // 注册信号处理函数
    struct sigaction sa;
    sa.sa_handler = signal_handler;
    sigemptyset(&sa.sa_mask);
    sa.sa_flags = 0;
    sigaction(SIGINT, &sa, NULL);

    std::cout << "Press Ctrl+C to resume execution." << std::endl;

    // 暂停程序执行
    pause();

    std::cout << "Program resumed." << std::endl;

    return 0;
}