fopen

 

C

Язык

Поддержка типов

Управление динамической памятью

Обработка ошибок

Программные утилиты

Дата и время

Строки

Алгоритмы

Числовая библиотека

Поддержка ввода/вывода

Поддержка локализации

Поддержка потоков (C11)

Атомарные операции (C11)

 

File input/output

Функции Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Доступ к файлам Original: File access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fopen freopen fclose fflush	fwide setbuf setvbuf
Прямой ввод / вывод Original: Direct input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fread
fwrite
Неформатированная ввода / вывода Original: Unformatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fgetc fgets fputc fputs getchar gets putchar puts ungetc	fgetwc fgetws fputwc fputws getwchar putwchar ungetwc
Форматированный ввод / вывод Original: Formatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
scanf fscanf sscanf vscanf vfscanf vsscanf (C99) (C99) (C99) printf fprintf sprintf snprintf (C99) vprintf vfprintf vsprintf vsnprintf (C99)	wscanf fwscanf swscanf vwscanf vfwscanf vswscanf (C99) (C99) (C99) wprintf fwprintf swprintf vwprintf vfwprintf vswprintf
Позиционирование файла Original: File positioning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ftell
fgetpos
fseek
fsetpos
rewind
Обработка ошибок Original: Error handling The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
clearerr
feof
ferror
perror
Операции с файлами Original: Operations on files The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
remove
rename
tmpfile
tmpnam

 

Заголовочный файл <stdio.h>
FILE *fopen( const char *filename, const char *mode );

Открывает файл указывается filename и возвращает файловый поток, связанный с этим файлом. mode используется для определения режима доступа к файлу.

Original:

Opens a file indicated by filename and returns a file stream associated with that file. mode is used to determine the file access mode.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Параметры

filename	-	имя файла, чтобы связать файл потока Original: file name to associate the file stream to The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
mode	-	нулем строку символов определения режима доступа к файлу File access mode string Meaning Explanation Action if file already exists Action if file does not exist "r" read Open a file for reading read from start failure to open "w" write Create a file for writing destroy contents create new "a" append Append to a file write to end create new "r+" read extended Open a file for read/write read from start error "w+" write extended Create a file for read/write destroy contents create new "a+" append extended Open a file for read/write write to end create new File access mode flag "b" can optionally be specified to open a file in binary mode. This flag has effect only on Windows systems. On the append file access modes, data is written to the end of the file regardless of the current position of the file position indicator. Original: null-terminated character string determining file access mode File access mode string Meaning Explanation Action if file already exists Action if file does not exist "r" read Open a file for reading read from start failure to open "w" write Create a file for writing destroy contents create new "a" append Append to a file write to end create new "r+" read extended Open a file for read/write read from start error "w+" write extended Create a file for read/write destroy contents create new "a+" append extended Open a file for read/write write to end create new File access mode flag "b" can optionally be specified to open a file in binary mode. This flag has effect only on Windows systems. On the append file access modes, data is written to the end of the file regardless of the current position of the file position indicator. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Возвращаемое значение

Открытие файла потока на успех, NULL на провал

Original:

Opened file stream on success, NULL on failure

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

См. также

fclose	закрывает файл Original: closes a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (функция)
fflush	синхронизирует выходной поток с фактическим файл Original: synchronizes an output stream with the actual file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (функция)
freopen	открыть существующий поток с другим именем Original: open an existing stream with a different name The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (функция)
C++ документация для fopen