此处假设只有3种颜色:
NSArray *arrayColor=[NSArray arrayWithObjects:@"f0f8ff", @"fff9ed",@"fef4f3",nil];
int value = arc4random() % 3;//获取0到2之间的整数
keywordLabel.backgroundColor=[UIColor hexChangeFloat:[arrayColor objectAtIndex:value]];
此处假设只有3种颜色:
NSArray *arrayColor=[NSArray arrayWithObjects:@"f0f8ff", @"fff9ed",@"fef4f3",nil];
int value = arc4random() % 3;//获取0到2之间的整数
keywordLabel.backgroundColor=[UIColor hexChangeFloat:[arrayColor objectAtIndex:value]];