圆角矩形的UIButton

 _cancelButton = [[UIButton alloc]init];

        [_cancelButton setTitle:@"取消订单" forState:UIControlStateNormal];

        [_cancelButton setTitleColor:getColor(@"ff7e02") forState:UIControlStateNormal];

        _cancelButton.titleLabel.font = DEF_FontSize_12;

        _cancelButton.layer.masksToBounds = YES;

        _cancelButton.layer.cornerRadius = 5;

        _cancelButton.layer.borderWidth = 1;

        _cancelButton.layer.borderColor = getColor(@"ff7e02").CGColor;