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 difference. C language support to read and write files, FILE pointer　text files and binary files the difference. Read and write files in text mode and read and write files in binary mode considerations. C++ support for file reading and writing, ofstream, and ifstream usage. Win32 SDK support for file reading and writing, CreateFile function, WriteFile function, ReadFile function is used　MFC support for file reading and writing, CFile class and the CFileDialog use, the file filter settings. win.ini file and registry and knowledge of reading and writing points.