计算两个日期之间的天数

计算两个日期之间的天数

话不多说，直接show code：

    time_t tt;    time(&tt);    struct tm *tlocaltime = localtime(&tt);    time_t tt1;    time(&tt1);    struct tm tlocaltime1;    memcpy(&tlocaltime1, tlocaltime, sizeof(struct tm));    tlocaltime1.tm_mon = tlocaltime1.tm_mon - 1;    time_t tTime;    tTime = (time_t)difftime(mktime(tlocaltime), mktime(&tlocaltime1));    int iDiffDay = (int)(tTime/24/3600);    qDebug() << iDiffDay;