UIView * myView = [[UIView alloc]initWithFrame:CGRectMake(320/2 – 200/2, 100, 200, 200)];//200*200的大棋盘

    myView.backgroundColor = [UIColor redColor];

    [self.window addSubview:myView];

    for(int i = 0;i<100;i=i+2){

//i%10是求出每一行的0到9的位置，i/10是求出所在的行的位置，除以2是为了隔开1行颜色

        UIView *insertView = [[UIView alloc]initWithFrame:CGRectMake((i%10+i/10%2)*20, i/10*20, 20, 20)];

        insertView.backgroundColor = [UIColor blackColor];

        [myView addSubview:insertView];

        [insertView release];

    }

    [myView release];