object－c将RGB颜色转换成16进制HTML颜色

-(void)color:(NSString *) red andGreen:(NSString*) green andBule:(NSString*) bule{
    NSInteger Red = [red integerValue];
    NSInteger Green = [green integerValue];
    NSInteger Bule = [bule integerValue];
    NSInteger colorsize = Red<<16 | Green << 8 | Bule;
    NSString * Color = [NSString stringWithFormat:@"#%06lx",colorsize];
    NSLog(@"%li",(long)colorsize);
    NSLog(@"Color = %@",Color);
}