问题
I'm wondering for what the GUID in the AssemblyInfo.cs in C# Programs is:
[assembly: Guid("a4df9f47-b2d9-49a9-b237-09220857c051")]
The commentary says it's for COM objects, but why do they need a GUID? Is the GUID accessibly externally?
So if it's only for COMs, do you need a GUID when you set [assembly: ComVisible(false)]?
回答1:
Guid (Globally unique identifier) is used to identify your component by outside world. When you write a project which is going to be used as COM (Component Object Model) you will have to give a unique name. For this reason you need to apply GUID attribute.
More info at http://msdn.microsoft.com/en-us/library/system.runtime.interopservices.guidattribute.aspx
You can remove it if you won't be exposing it as COM on assembly level
回答2:
All .Net assemblies have a GUID.
This attribute sets it; otherwise, it will be randomly generated by the compiler.
This GUID is not used by much.
来源：https://stackoverflow.com/questions/22516400/what-does-the-guid-in-c-sharp-programs-in-the-assemblyinfo-cs