button设置边宽和圆角

UIButton *meifuButton = [UIButton buttonWithType:UIButtonTypeSystem];

[meifuButton setTitle:@"分享到美肤" forState:UIControlStateNormal];

[meifuButton setTitleColor:REDSELECTCOLORE forState:UIControlStateNormal];

meifuButton.frame = CGRectMake(SCREEN_WIDTH - 100, 20, 90, 25);

meifuButton.layer.cornerRadius = 8; //设置半径

meifuButton.layer.borderWidth = 1; //设置边宽

meifuButton.layer.borderColor = REDSELECTCOLORE.CGColor; //设置边部的颜色
[_shareContent addSubview:meifuButton];