一，代碼。 - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSLog(@"--產生隨機數 %@",[self ge ...
一，代碼。
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSLog(@"--產生隨機數---%@",[self getOrderNumber]);
}
//產生隨機數
- (NSString *)getOrderNumber{
int random = arc4random()%10000;
return [NSString stringWithFormat:@"%d",random];
}
二，輸出。
2015-10-23 10:53:59.982 顯示隨機數[4243:98132] --產生隨機數---4700
