Button排列

    int count =11;

    

   for (int i =0; i<count; i++) {

        UIButton *button = [UIButtonbuttonWithType:UIButtonTypeRoundedRect];

        [buttonsetFrame:CGRectMake(10+(i%3)*90,170+(i/3)*35,70, 30)];

        [buttonsetTag:i+400];

        [button addTarget:selfaction:@selector(button:)forControlEvents:UIControlEventTouchUpInside];

        [self.viewaddSubview:button];

    }