打印当前时间【CSDN】

    time_t now;
    time(&now);
    struct tm* newtime = localtime(&now);
    printf( "%4d/%02d/%02d %02d:%02d:%02d\n",
        1900 + newtime->tm_year, newtime->tm_mon,newtime->tm_mday,newtime->tm_hour,newtime->tm_min, newtime->tm_sec);