说明：  VC文件读取: 刚开始学习VC，也不知道从何下手，可能最想做的就是将一个文件读入内存中来。说起来就是那么简单一句话：读取文件！可是真正编程序的时候又不知道怎么办了？
(VC document read: just started to learn VC, do not know where to start, may be the most want to do is to read a file to memory. It is as simple as to say a word: read the file! But when the real-programmed not know how to do it?)