int totalColumns = 3; CGFloat top=100;
// 每一格的尺寸
CGFloat cellW = 100;
CGFloat cellH = 100;
// 间隙
CGFloat margin =(self.view.frame.size.width - totalColumns * cellW) / (totalColumns + 1);
//根据格子个数创建对应的框框
for(int index = 0; index< 9; index++) {
UIView *cellView = [[UIView alloc ]init ];
cellView.backgroundColor = [UIColor blueColor];
// 计算行号 和 列号
int row = index / totalColumns;
int col = index % totalColumns;
//根据行号和列号来确定 子控件的坐标
CGFloat cellX = margin + col * (cellW + margin);
CGFloat cellY = row * (cellH + margin);
cellView.frame = CGRectMake(cellX, cellY+top, cellW, cellH);
// 添加到view 中
[self.view addSubview:cellView];
}