使用ld实用程序和dlfcn API进行动态链接的优点?

I am doing some research into platform independent code and found mention of the dlfcn API. It was the first time I came across mention of it and did further research into it. Now hopefully my lack of experience/understanding of platform independent code as well as compiling/linking isn't going to show in this post but to me the dlfcn API just lets us do the same dynamic linking programmatically that the ld utility does. If I have misconceptions please correct me as I would like to know. Regarding what I think I know about the ld utility and the dlfcn API I have some questions.I am doing some research into platform independ