孙鑫vc++深入详解第十二课， 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。-Sun Xin vc++ in-depth Xiangjie 12th class, const char* and char* const difference. C language support to read and write files, file pointers text files and binary files the