学习网站：
https://blog.csdn.net/fitzzhang/article/details/47046133
https://www.cnblogs.com/chenyangchun/p/6795923.html
C++类型转换----reinterpret_casthttps://blog.csdn.net/u010154685/article/details/51800235
C++类型转换----reinterpret_cast
https://blog.csdn.net/u010154685/article/details/51800235
