C中的函数指针如何工作？

问题：

I had some experience lately with function pointers in C. 我最近对C中的函数指针有一些经验。

So going on with the tradition of answering your own questions, I decided to make a small summary of the very basics, for those who need a quick dive-in to the subject. 因此，继续回答您自己的问题的传统，我决定为那些需要快速学习该主题的人做一些基本的总结。

---

解决方案：

参考一： https://stackoom.com/question/3WeT/C中的函数指针如何工作
参考二： https://oldbug.net/q/3WeT/How-do-function-pointers-in-C-work

来源：oschina

链接：https://my.oschina.net/stackoom/blog/4310571