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 of the document to read and write support, FILE pointer　text file and binary file distinction. Used to read and write text files and read and write files in binary mode Notes. C++ Of documents 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 reading and writing of the document, CFile Class CFileDialog and the use of paper filter settings. win.ini file and registry read and write methods and related knowledge points.