相信有过编码经验的人都知道，程序的正常运行，只是最基本的要求。更多的，还要考虑程序的性能，运行效率，组织结构，和重用性等等。
这本书将教会你一些代码优化中关于内存的部分(People who have the experience of coding know that the normal operation of the program is only the basic requirement. More, consider the performance, efficiency, organization, and reusability of programs, and so on.
This book will teach you some of the memory in code optimization)