Created
April 13, 2015 05:59
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获取一个随机数
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:arc4random() 常用方法集合 | |
//获取一个随机整数范围在:[0,100)包括0,不包括100 | |
int x = arc4random() % 100; | |
//获取一个随机数范围在:[500,1000),包括500,不包括1000 | |
int y = (arc4random() % 501) + 500; | |
//获取一个随机整数,范围在[from,to),包括from,不包括to | |
-(int)getRandomNumber:(int)from to:(int)to | |
{ | |
return (int)(from + (arc4random() % (to – from + 1))); | |
} |
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