W3School TIY Editor

#include <iostream> #include <ctime> // 导入 ctime 库 using namespace std; int main() { time_t now; time_t nextyear; struct tm datetime; now = time(NULL); datetime = *localtime(&now); datetime.tm_year = datetime.tm_year + 1; datetime.tm_mon = 0; datetime.tm_mday = 1; datetime.tm_hour = 0; datetime.tm_min = 0; datetime.tm_sec = 0; datetime.tm_isdst = -1; nextyear = mktime(&datetime); int diff = difftime(nextyear, now); cout << diff << " 秒后就是明年"; return 0; }