Privately inquire about some of the "bad" code segments with an eye toward the possibility that it is actually reasonable code, (no matter how predisposed you may be), or that there are perhaps extenuating circumstances. If you are still convinced that the code is just plain bad -- and that the source actually is this person -- just go away. One of several things may happen: 1) the person notices and takes some corrective action, 2) the person does nothing (is oblivious, or doesn't care as much as you do).

如果#2发生了，或者从你的角度来看，#1并没有带来足够的改进，并且它正在损害项目，并且/或对你造成了足够的影响，那么可能是时候在团队中开始建立/执行标准了。这需要管理层的支持，但只有从基层做起才最有效。

祝你好运。我能感受到你的痛苦，兄弟。

Privately inquire about some of the "bad" code segments with an eye toward the possibility that it is actually reasonable code, (no matter how predisposed you may be), or that there are perhaps extenuating circumstances. If you are still convinced that the code is just plain bad -- and that the source actually is this person -- just go away. One of several things may happen: 1) the person notices and takes some corrective action, 2) the person does nothing (is oblivious, or doesn't care as much as you do).

如果#2发生了，或者从你的角度来看，#1并没有带来足够的改进，并且它正在损害项目，并且/或对你造成了足够的影响，那么可能是时候在团队中开始建立/执行标准了。这需要管理层的支持，但只有从基层做起才最有效。

祝你好运。我能感受到你的痛苦，兄弟。

我真的很喜欢EnderMB的回答，但我想补充一点:

培养一种鼓励讨论代码质量的环境，而不是将其视为敏感或禁忌。例如，我曾在一个开源项目(一个Python库)中工作，团队经常讨论新代码和错误修复。不仅可以说“嘿，我认为这样做更好”，而且这实际上是被鼓励的，也是我们用于维护高质量代码的过程的一部分。

我知道不是每个环境都有利于这种过程，但它确实对我们很有效。每一次代码提交并不一定是一次委员会会议，但它应该是完全可以接受的，您可以讨论有问题的或非最优的代码并寻求改进。毕竟，更好的代码对团队中的每个人都有好处，团队合作的一个主要概念是一起工作，而不是松散的个人团体。

根据我的经验，曾经有一段时间，我们想要将一个windows应用程序更改为一个web应用程序并进行优化，因为它更容易更新和维护。但由于我的朋友是windows应用程序的主要贡献者，他不允许更改，然后剩下的就是历史了。

寓意:为了代码优化和更好的维护，在任何编程环境中，重视组织的目标都比重视个人的目标更重要。

这完全取决于你写作的文化。在一个自由软件项目中，你告诉他们他们写的代码不好，并给出积极的建议、改进方法和反馈。你也可以给他们的代码发送一个补丁。

一封友好的电子邮件也不会有什么坏处。

耐心再怎么强调都不为过。我见过这种完全事与愿违的事情，主要是因为有人希望现在就发生变化。相当多的环境需要进化的好处，而不是革命。今天强行改变，可能会给所有人带来一个非常不愉快的环境。

接受是关键。你的方法需要考虑到你所处的环境。

听起来你所处的环境有很多“个性”。所以…我不建议使用一套编码标准。你会发现你想把这个“有趣”的项目变成一个高度结构化的工作项目(哦，太好了，接下来是什么……功能文件?)相反，正如其他人所说，你必须在一定程度上处理它。

Stay patient and work toward educating others in your direction. Start with the edges (points where your code interacts with others) and when interacting with their code try to take it as an opportunity to discuss the interface they've created and ask them if it would be okay with them if it was changed (by you or them). And fully explain why you want the change ("it will help deal with changing subsystem attributes better" or whatever). Don't nit-pick and try to change everything you see as being wrong. Once you interact with others on the edge, they should start to see how it would benefit them at the core of their code (and if you get enough momentum, go deeper and truly start to discuss modern techniques and the benefits of coding standards). If they still don't see it... maybe you'll need to deal with that within yourself (especially on a "fun" project).

耐心。进化，而不是革命。

祝你好运。