为了防止有人犯了同样的愚蠢错误：

Just in case someone made the same stupid mistake as I did:

检查您期望的 didSelect 的方法名称是否可能意外获取 didDeselect 某种程度上来说。我花了大约两个小时来找出...

Check out if the method name of what you expect of being didSelect may accidentally be gotten didDeselect in some way. It took about two hours for me to find out ...