UIButton *signBtn = [UIButton buttonWithType:UIButtonTypeCustom];

signBtn.frame = CGRectMake(0, 0, 80, 40);

[signBtn.layer setMasksToBounds:YES];

[signBtn.layer setCornerRadius:10.0]; //设置矩形四个圆角半径

[signBtn.layer setBorderWidth:1.0]; //边框宽度

CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();

CGColorRef colorref = CGColorCreate(colorSpace,(CGFloat[]){ 1, 0, 0, 1 }); 

[signBtn.layer setBorderColor:colorref];//边框颜色

[signBtn setTitle:@"还  原" forState:UIControlStateNormal];//button title

[signBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];//title color

[signBtn addTarget:self action:@selector(buttonDonwRecover:) forControlEvents:UIControlEventTouchUpInside];//button 点击回调方法

signBtn.backgroundColor = [UIColor whiteColor];

- (void)buttonDonwRecover:(id)sender

{

    UIButton *btn = (UIButton *)sender;

}