It can be used but is not a good
C ++ primer fifth edition of the source code import vs2019
download source with books
Download the source code are marked on the book: www.informit.com/title/0321714113
Then the following Web page has links to download the source code.
链接：https://pan.baidu.com/s/1q-o8cX6WKyx7j34phKE8kA
提取码：fwug
Place the downloaded source code of your project Debug folder under
the code added
#include"Debug/c++primer/1/Sales_item.h"
#include"Debug/c++primer/Version_test.h"
......
Sales_item.h header file path is also appropriate modifications
#include "Debug/c++primer/Version_test.h"
