在 IronPython 中重新声明 .net 类
谁能告诉我是否可以在 IronPython 中重新声明 C# 类？ 如果我有一个 C# 类，我可以从 IronPython 对其进行猴子修补吗？
Can anyone tell me if its possible to redeclare a C# class in IronPython? If I have a C# class, would I be able to monkey-patch it from IronPython?
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您无法从 IronPython 进行猴子修补。 IronPython 对待所有 .NET 类就像 CPython 对待内置类型一样：它们不能被猴子修补。 另一方面，IronRuby 确实支持这一点。
You cannot monkey patch from IronPython. IronPython treats all .NET classes just like CPython treats built-in types: they cannot be monkey patched. IronRuby on the other hand does support this.
您可以从 IronPython 进行猴子补丁，但 IPy 是唯一尊重您的更改的环境； 即，如果您尝试从 IronPython 模拟 File.Create，这对于任何 IPy 代码都可以正常工作，但如果您调用名为 File.Create 的 C# 方法，它将获得真实的方法，而不是模拟的。
You can monkey-patch from IronPython, but IPy is the only environment that will respect your changes; i.e. if you tried to mock out File.Create from IronPython, this would work fine for any IPy code, but if you called a C# method which called File.Create, it would get the real one, not the mock.
为什么要重新声明呢？ 将其子类化或者只是创建一个全新的不是更有意义吗？班级？
编辑：请澄清一下，我认为您真正需要的是一个适当的控制反转（IOC）框架，例如 温莎城堡。 基本上，您有一个数据库接口，然后配置 IOC 框架以注入用于生产的真实数据库和用于测试的模拟数据库。
Why would you redeclare it? Wouldn't it make more sense to subclass it or just make a totally new class?
EDIT: Give your clarification, I think what you actually need is a proper inversion of control (IOC) framework, such as Castle Windsor. Basically, you have a database interface, then configure the IOC framework to inject a real database for production, and mock database for testing.