Rnd 
һ

Rnd[(number)]
number Чֵʽ

˵
Rnd һС 1 ڻ 0 ֵnumber ֵ Rnd ķʽ

 number Ϊ Rnd  
С ÿζֵͬʹ number Ϊӡ 
 еһ 
 ɵ 
ʡ еһ 

ÿһ Rnd ʱеǰһΪһӣԶκӶͬС

ڵ Rnd ֮ǰʹ޲ Randomize ʼлϵͳʱӡ

ҪָΧʹ¹ʽ 

Int((upperbound - lowerbound + 1) * Rnd + lowerbound)
 upperbound Ǵ˷ΧϽ磬 lowerbound Ǵ˷Χڵ½硣

ע   ҪظУʹֵ Randomize ֮ǰøֵ Rndʹͬ number ֵ Randomize ظǰС