arc4random

1) arc4random () is more accurate and does not need to be generated immediately. Usage: The code for getting an integer between 0 and X-1 through arc4random () is as follows: Int value = arc4random () % x; The code for getting an integer between 1

VaR A = arc4random () % 40 + 10 Arc4random is a real pseudo-random function that returns a large number. Arc4random () % 40, return 0 ~ 39, so the range of A is 10 ~ 49. The maximum value returned by arc4random is 0x100000000. Rand () is not a

Use of random numbers in Objective-c (3 types: Arc4random (), Random (), ccrandom_0_1 ())1, the use of random numbers 1), arc4random () more precise do not need to generate the seed immediatelyHow to use:The code for obtaining an integer between 0

1), arc4random () more precise do not need to generate the seed immediatelyHow to use:The code for obtaining an integer between 0 and X-1 by Arc4random () is as follows:int value = Arc4random ()% x;The code to get an integer between 1 and X is as

Arc4random () This global function generates a 9-digit random integer1, the following is the use of the Arc4random function to find a 1~100 random number (including 1 and 100) 1 vartemp:Int = Int(arc4random()%100)+1 2

Arc4random () This global function generates a 9-digit random integer1, 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

OBJECTIVE-C does not directly provide random data generation functions or methods, but we can directly use C's various random algorithmsThe following is the use of several common random number algorithms, which can be referenced in the following

there is a arc4random () function in objective-c that generates random numbers and does not require seed, but this function generates a large range of random numbers, and it is a bit cumbersome to use a modulo algorithm to limit random values. in

1, Generate random stringfor (int i = 0; i Application of Arc4random

On six chapters: Layer Tree Layer's Homestay Map Layer geometry Layer Visual effects Layer transformations Dedicated layers This essay focuses on implicit animation of layers.Implicit animations: No