fopen

 

C

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File input/output

機能します Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ファイルアクセス 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
直接入力/出力 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
書式なし入力/出力 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
書式付き入力/出力 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
ファイル位置付け 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
エラー処理 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
ファイルに対する操作 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

 

Defined in header <stdio.h>
FILE *fopen( const char *filename, const char *mode );

filenameによって示されたファイルを開き、そのファイルに関連付けられたファイルストリームを返します。 modeは、ファイル·アクセス·モードを決定するために使用され.

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.

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パラメータ

filename	-	にファイルストリームを関連付けるファイル名 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	-	ファイル·アクセス·モードを決定する、NULLで終わる文字列 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.

値を返します

失敗した場合にNULL、成功した場合にファイルストリームをオープンしました

Original:

Opened file stream on success, NULL on failure

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も参照してください

fclose	ファイルを閉じます 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. (機能)
fflush	実際のファイルで出力ストリームを同期させます 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. (機能)
freopen	別の名前で既存のストリームを開きます 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. (機能)
C++ documentation for fopen