采用Visual C++编写的窗口产生代码，便于理解Windows程序运行原理及程序编写流程，窗口产生过程，句柄原理，消息队列，回调函数，窗口关闭与应用程序退出的工作关系-Using Visual C++ Prepared window generated code, easy to understand Windows program to run the principle and procedure of the preparation process, the process windo