设置圆角

//corner角落Radius半径

self.loginBtn.layer.cornerRadius = 5;

//masks掩饰ToBounds边界线

self.loginBtn.layer.masksToBounds = YES;

//cell里面的头像变成圆形

- (void)awakeFromNib

{

self.tag_image.layer.cornerRadius=self.tag_image.frame.size.width*0.5;

self.tag_image.layer.masksToBounds=YES;

}