date & time 物件的初始化
QDate dt1(2015, 4, 12);
dt1.toString(); //Sun Apr 12 2015
QDate dt2;
dt2.setDate(2015, 3, 3);
dt2.toString(); //Tue Mar 3 2015
QTime tm1(17, 30, 12, 55);
tm1.toString("hh:mm:ss.zzz"); //17:30:12.055
QTime tm2;
tm2.setHMS(13, 52, 4...