采用注入的方式来达到程序注入系统进程或其他进程，并以此为宿主，而执行本身的代码，对于研究病毒原理的人有很大的作用。-Injection methods used to achieve the program into the system process or other processes, and use it as the host, and to enforce its own code, for studying the virus principle have a significant role.