File access Open file std::fopen std::FILE* fopen( const char* filename, const char* mode ); Opens the file indicated by filename and returns the stream associated with the file. Use mode to determine the file access mode. Parameters filename – The file name to which the file stream is to be associated mode – A null-terminated […]
Tag: fclose
Standard IO process thread functions: fopen, perror, fclose, fprintf, fscanf, fputc, fgetc, buffer, fputs, fgets, fwrite, fread, fseek, ftell,
Standard IO functions: 1. Stream pointer (FILE*): FILE* fp=fopen(“1.txt”,”r”): This fp is a stream pointer. When this file is opened in read-only mode, a buffer will be applied for at the same time. At this time, the stream pointer fp It will contain the information of the current reading position of the file, if it […]
C language file operation, introduction of fopen, fclose, fgetc, fgets, fputc, fputs, fwrite, fread, feof, ferror, fprintf, fscanf and other file functions
Article directory Why use files what is a file file opening and closing file pointer file opening and closing Sequential reading and writing of files Compare a set of functions Random reading and writing of files fseek ftell function rewind function text files and binary files Judgment of the end of file reading misused feof […]
C++ structure data read and write files fopen fclose fwrite wread fseek function details
1. Header file #include 2.fopen() function Call the fopen() function to open or create a file. FILE *fopen(const char *path, const char *mode); path : The parameter path points to the file path, which can be an absolute path or a relative path. mode: The parameter mode specifies the read and write permissions for the […]
Explanation of c language file operation functions; fopen(); fputs(); fgets(); fflush(); fsync(); fileno(); open(); fclose();
Directory 1. What is a file Second, the meaning of the file pointer 3. Common operable functions in files 1) fopen(); Explanation 2) fputs(); Explanation 3) fgets(); Explanation 4) fflush(); Explanation 5) fsync(); Explanation 6) fileno(); Explanation 7) fclose(); Explanation 4. Example explanation 1) Basic example 2) Advanced example Five, open (); explanation 1. What […]