C++时间戳转换

#include 
#include 
#include 
using namespace std;
int main()
{

    time_t t;
    struct tm p, q;
    time(&t);

    for (int i = 0; i < 6; i++)
    {
        t -= 10;
        char time22[30];
        p = *localtime(&t);
        strftime(time22, 30, "%Y%m%d %H%M%S", &p);
        cout << time22 << endl;
    }
    return 0;
}