在讨论了如何实现单例模式之后，我会逐一介绍这些时而出现的诡异现象，讲解它们是怎么出现的以及如何去避免犯错。

After discussing how to implement the singleton, I'll go over the sometimes surprising causes for the phenomena one by one, showing you how they occur and how you can avoid making those mistakes.

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如果你未能回答上述问题，介下来你就有必要考虑下怎么给自己做做品牌了。

If you can't answer those questions, perhaps it's time to think about how you brand yourself.

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