用C++写一个新年倒计时代码

以下是用C++写的一个新年倒计时代码的例子：

#include <iostream>
#include <ctime>

int main() {
    // 获取当前时间
    time_t now = time(0);

    // 将当前时间转换为tm结构体
    tm *ltm = localtime(&now);

    // 设置新年的日期
    tm newYear;
    newYear.tm_sec = 0;
    newYear.tm_min = 0;
    newYear.tm_hour = 0;
    newYear.tm_mday = 1;
    newYear.tm_mon = 0; // 一月
    newYear.tm_year = ltm->tm_year + 1900; // 当前年份

    // 计算距离新年的秒数
    time_t newYearTime = mktime(&newYear);
    int secondsLeft = difftime(newYearTime, now);

    // 计算天、时、分、秒
    int days = secondsLeft / (24 * 60 * 60);
    int hours = (secondsLeft % (24 * 60 * 60)) / (60 * 60);
    int minutes = (secondsLeft % (60 * 60)) / 60;
    int seconds = secondsLeft % 60;

    // 输出倒计时结果
    std::cout << "距离新年还有：" << days << "天 " << hours << "小时 " << minutes << "分钟 " << seconds << "秒" << std::endl;

    return 0;
}