判断两个颜色是否相同

-(BOOL)firstColor:(UIColor*)firstColor secondColor:(UIColor*)secondColor
{
    if (CGColorEqualToColor(firstColor.CGColor, secondColor.CGColor))
    {
        NSLog(@"颜色相同");
        return YES;
    }
    else
    {
        NSLog(@"颜色不同");
        return NO;
    }
}