告诉我编译器在这里做了什么？

Question

请告诉我它的作用？

$ ar -r libsldap.a

Answer 1

"教一个人钓鱼",我说:

> man ar

[...]
DESCRIPTION
       The GNU ar program creates, modifies, and extracts from archives.  An
       archive is a single file holding a collection of other files in a
       structure that makes it possible to retrieve the original individual
       files (called members of the archive).
[...]

man 是你的朋友.