Swift-use Arc4random (), Arc4random_uniform () to get random numbers

Arc4random () This global function generates a 9-digit random integer

1, the following is the use of the Arc4random function to find a 1~100 random number (including 1 and 100)

Let Temp:int = Int (arc4random ()%) +1        Print (temp)

2, the following is the use of the Arc4random_uniform function to find a 1~100 random number (including 1 and 100)

Let Temps:int = Int (arc4random_uniform)+1        print (temps)

Arc4random_uniform randomly returns an integer between 0 and the upper bound (without the upper bound). An upper bound of 2 will get 0 or 1, like a coin toss.

Original link: http://www.hangge.com/blog/cache/detail_513.html

Swift-use Arc4random (), Arc4random_uniform () to get random numbers