How can I call a C++ function from C#?

Question

如何从C＃.NET调用C ++函数？

Answer 1

1. compile the C++ function into a dll and use P/Invoke

   or

2. compile the C++ function into a C++/CLI assembly, wrap in a managed C++ class, and then treat like any other assembly (add a reference, use a using statement and call the class)

Answer 2

Or

Create a COM wrapper and then reference it from .NET