相关资料：
https://www.jianshu.com/p/24adda28e9f0
https://www.jianshu.com/p/4664e16bb80d
解决库冲突
http://www.zhimengzhe.com/IOSkaifa/32142.html
https://www.aliyun.com/jiaocheng/357892.html
海康威视(iOS集成)
原文：https://www.cnblogs.com/royi123/p/9483474.html
