python与c接口：指针相关：id，POINTER，pointer和byref解释

参考文章：
https://blog.csdn.net/linda1000/article/details/12623527#commentBox

https://blog.csdn.net/mfq1219/article/details/81945448

http://www.runoob.com/python/python-func-id.html

待有空补充我的实验数据