使用GDI+来加载PNG图文件的实例, 作者代码清晰易读, 使用MFC开发, 适合初学者学习如何使用GDI+加载PNG图文件.--Use GDI+ to load the PNG map file example, on code readability, use the MFC development, suitable for beginners to learn how to use GDI+ load PNG map file .-