iOS多个按钮单选

连夜记录...

有时候就是懒，不想动脑子的时候非得找写过的代码复制....

    _btn_select = self.btn_all;//1个按钮用来记录



#pragma mark - 点击事件
- (IBAction)btnMoney:(UIButton *)sender {
    if (!sender.selected) {
        _btn_select.selected = !_btn_select.selected;
        sender.selected = !sender.selected;
       
        _btn_select = sender;
    }
    
}