const char *与char * const的区别。C语言对文件读写的支持，FILE指针；文本文件和二进制文件的区别。用文本方式读写文件和以二进制方式读写文件的注意事项。C++对文件读写的支持，ofstream和ifstream的用法。Win32 SDK对文件读写的支持，CreateFile函数、WriteFile函数、ReadFile函数的使用；MFC对文件读写的支持，CFile类和CFileDialog的使用，文件过滤器的设置。win.ini文件和注册表的读写方式及相关知识点。-const char* and char* const distinction. C language support of the document to read and write, FILE pointer　text file and binary file distinction. Used to read and write text files and read and write files in binary mode of attention. C++ on the paper to read and write support, ofstream and ifstream usage. Win32 SDK to read and write support for the document, CreateFile function, WriteFile function, ReadFile function to use　MFC support for the document to read and write, CFile Class CFileDialog and the use of paper filter settings. win.ini file and registry and associated knowledge to read and write points.