unresolved external symbols due to improper placement of C + + inline

Writing code these days encounters an unresolved external symbol for Visual Studio.

The inline modifier in a class should be placed at the time of the class function definition rather than the declared place

That

// test.h Header File class a{public:    void  Foo ();}

// test.cpp Source File  "test.h"void

That's right.

And I put him (inline) in the class function when the result is wrong (Khan).

Finally remember "rebuild Solution"!

unresolved external symbols due to improper placement of C + + inline