2022新年倒计时

#define  _CRT_SECURE_NO_WARNINGS
#include 
#include 
#include 
//#pragma warning(disable:4996)
using namespace std;
int main()
{
	while (1) {
		time_t now = time(0);
		// 把 now 转换为字符串形式
		char* dt = ctime(&now);
		cout << "本地日期和时间：" << dt << endl;

		//设置某个时间点
		struct tm t2 = { 0 };
		double seconds;
		t2.tm_year = 2022 - 1900; t2.tm_mon = 0; t2.tm_mday = 1;//2022,1,1
		t2.tm_hour = 0;
		seconds = difftime(mktime(&t2), now);//转换结构体为time_t,利用difftime,计算时间差
		cout << "距离元旦节还有 :" << seconds << "秒" << endl;//输出时间
		Sleep(1000);
		system("cls");
	}

}