Successfully compiled the code containing <pthread.h> under VS2017:

• VS2017 configuration uses #<pthread.h> https://blog.csdn.net/cry1994/article/details/79115394 (The original SystemWow64 stores 32 files.)
• Errors encountered after configuration and solutions:
• Error in pthread.h: C2011 "timespec": " struct " type redefinition 　　
• Workaround: 　　 Add define HAVE_STRUCT_TIMESPEC below #if !defined( PTHREAD_H ) 　　#define PTHREAD_H 　　This will tell pthreads, the Win32 header, that you already have an appropriate timespec and will make your code compile fine.                                                       

• obj error: unresolved external symbol __imp__pthread_create, which is referenced in function _main 　　
• Solution: #include <iostream> 　　#include <pthread.h> 　　using namespace std; 　　in the .cpp file , add #pragma comment(lib, "pthreadVC2.lib") // indicates linking the library pthreadVC2.lib. The effect is the same as writing the link into Ws2_32.lib in the project settings, but the program written in this method does not need to set the project settings when others use your code.