UIButton的一些常用方法属性设置

//初始化一个button

UIButton *defaultIcon =[[UIButton alloc] initWithFrame:CGRectMake(230, 10, 23, 23)];

//为其添加tag，绑定响应事件到相应的函数

[defaultIcon addTarget:defaultBabyIconTag action:@selector(clickChangeBaby) forControlEvents:UIControlEventTouchUpInside];
[cell addSubview:defaultIcon];