QT generate random number qrandomgenerator

Note that this kind of introduction is Qt5.10 After version
Call a static function to get an object

[static] QRandomGenerator *QRandomGenerator::global()

Call object QRandomGenerator The member function of generates random numbers :

int  bounded(int highest)  // Random number range 0-highest, It doesn't contain highest, Return value is the result 

int  bounded(int lowest,int highest)  //lowest-highest, It doesn't contain highest