我知道程序集由一个或多个模块和资源文件(如果有)组成.

如果在C#中编译项目,则编译器只需将代码转换为托管模块,然后将该模块放入程序集中.现在我的问题是,大会何时会有超过1个托管模块？

最佳答案 这是对
Netmodule vs. Assembly的一个很好的解释.

简而言之,出于以下原因,人们会使用多个模块：

Multi-language assemblies.

If the assembly is consist of source files with different programming languages, you have to compile files with the same programming languages into netmodules, then link them into assemblies.

Separately maintained source files.

If the assembly is maintained by multiple developers, it may make sense to separate the source files into small collections. Each collection is owned by an individual developer. Collections are compiled as netmodules, then linked to the final assembly.

Small download footprint.

If the assembly is hosted in an http site, CLR will only download the main module at the first time. The remaining modules will be downloaded on demand. You can separate the less frequently used code from the main line code, and compiled the less frequently used code as a netmodule. User will only download the netmodule when it is needed.

Link the same source files into multiple assemblies.

You may have some common code that is used in multiple assemblies. The common code is small enough that it is not worth to compile them into a separate assembly. To avoid compiling the same source files multiple times, you can compile them into a netmodule, then link it into different assemblies.