1 #include <iostream> 2 #include <iomanip> 3 #include <ctime> 4 #include <windows.h> 5 using namespace std; 6 int main() 7 { 8 time_t ti = time(NULL); 9 struct tm* timer = localtime(&ti); 10 while(1) 11 { 12 cout << setfill('0') << setw(2) << timer->tm_hour << ":" <<setw(2) << timer->tm_min << ":" << setw(2) << timer->tm_sec << " "; 13 Sleep(1000);//睡眠一秒钟 14 if(++timer->tm_sec >= 60)//秒 15 { 16 timer->tm_sec = 0; 17 if(++timer->tm_min >= 60)//分 18 { 19 timer->tm_min = 0; 20 if(++timer->tm_hour >= 24)//时 21 timer->tm_hour = 0; 22 } 23 } 24 } 25 return 0; 26 }