C# .cs file name and class name need to be matched?

依然范特西╮ 提交于 2019-12-08 14:36:04

问题


In Java the file name must be the public class name defined in that java file. Does C# has similar requirement? can I have a A.cs file which only defines a public Class B inside? thanks,


回答1:


No, there is no similar requirement.

Yes, you can do this.

It is considered bad practice, however.

Microsoft StyleCop will warn you if you do this, but everything will compile fine.




回答2:


No, there is not a requirement that the filename matches a single public class being defined in the file. In fact, it is not necessary to have a relationship between the name of the containing file and any classes that are defined in the file. Implicit in this statement is that it is even possible to define more than one class in the same enclosing file (even if there are multiple classes that are public, unlike Java). Moreover, it is possible to define a class across multiple files using the partial keyword.

Best practice, however, is to define one class per file and to give the file the same name as the class (or struct, etc.) being defined.




回答3:


No, in C# you don't have to name your class the same as your file.

Along a similar line, you can have multiple public classes in on file. Java only lets you have one.

This can be helpful for defining a few public enums in one file. Of a few small classes.

It is bad practice however to throw too much into one file.




回答4:


It is possible to have a file A.cs that contains public class B but it is considered to be bad practice.



来源:https://stackoverflow.com/questions/2224653/c-sharp-cs-file-name-and-class-name-need-to-be-matched

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