scanf, fscanf, sscanf

 

C

Lenguaje

Encabezados

Soporte de tipos

Utilidades del programa

Funciones variádicas

Gestión de errores

Gestión de memoria dinámica

Utilidades de fecha y hora

Biblioteca de cadenas de caracteres

Algoritmos

Números

Soporte de entrada/salida

Soporte de localización

Operaciones atómicas(C11)

Soporte de procesos(C11)

Especificaciones Técnicas

 

File input/output

Funciones Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Acceso a archivos 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
Directo de entrada / salida 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
Entrada sin formato / salida 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
Formato de entrada / salida 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.
scanffscanfsscanf vscanfvfscanfvsscanf (C99)(C99)(C99) printffprintfsprintfsnprintf (C99) vprintfvfprintfvsprintfvsnprintf (C99)	wscanffwscanfswscanf vwscanfvfwscanfvswscanf (C99)(C99)(C99) wprintffwprintfswprintf vwprintfvfwprintfvswprintf
Presentar posicionamiento 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
Gestión de errores 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
Las operaciones en los archivos 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

 

Definido en el archivo de encabezado <stdio.h>
​int scanf(constchar*format, ... );​	(1)
int fscanf(FILE*stream, constchar*format, ... );	(2)
int sscanf(constchar*buffer, constchar*format, ... );	(3)

Lee los datos de la variedad una de las fuentes, se interpreta de acuerdo con format y almacena los resultados en localizaciones dadas .

Original:

Reads data from the a variety of sources, interprets it according to format and stores the results into given locations.

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1)

lee los datos de stdin

Original:

reads the data from stdin

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2)

lee los datos de stream archivo continuo

Original:

reads the data from file stream stream

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3)

lee los datos de terminación nula buffer cadena de caracteres

Original:

reads the data from null-terminated character string buffer

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Parámetros

stream	-	flujo de entrada de archivo para leer Original: input file stream to read from The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
buffer	-	puntero a una cadena de caracteres terminada en cero que leer Original: pointer to a null-terminated character string to read from The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
format	-	puntero a una cadena de caracteres terminada en cero que especifica cómo leer la entrada. La cadena de formato se compone de espacios en blanco (cualquier carácter único espacio en blanco en la cadena de formato consume todos los caracteres de espacio en blanco consecutivos a partir de la entrada), no está en blanco, excepto % personajes (cada personaje tal en las cadenas de formato consume exactamente un carácter idéntico de la entrada) y especificaciones de conversión. Cada especificación de conversión tiene el siguiente formato: Original: The format string consists of whitespace characters (any single whitespace character in the format string consumes all available consecutive whitespace characters from the input), non-whitespace characters except % (each such character in the format strings consumes exactly one identical character from the input) and conversion specifications. Each conversion specification has the following format: The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. % carácter introductorio Original: introductory % character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (opcional) asignación que suprime el carácter *. Si esta opción está presente, la función no se asigna el resultado de la conversión a cualquier argumento recepción . Original: (opcional) assignment-suppressing character *. If this option is present, the function does not assign the result of the conversion to any receiving argument. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (opcional) número entero (mayor que cero) que especifica' máximo ancho de campo, es decir, el número máximo de caracteres que la función se les permitió consumir al hacer la conversión especificada por la especificación de conversión de corriente. Tenga en cuenta que [% s y% puede dar lugar al desbordamiento del búfer si el ancho no está previsto . Original: (opcional) integer number (greater than zero) that specifies maximum field width, that is, the maximum number of characters that the function is allowed to consume when doing the conversion specified by the current conversion specification. Note that %s and %[ may lead to buffer overflow if the width is not provided. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (opcional) longitud' modificador que especifica el tamaño del argumento de recepción, es decir, el tipo de destino real. Esto afecta a la precisión de la conversión y las reglas de desbordamiento. El tipo de destino predeterminado es diferente para cada tipo de conversión (ver tabla a continuación) . Original: (opcional)length modifier that specifies the size of the receiving argument, that is, the actual destination type. This affects the conversion accuracy and overflow rules. The default destination type is different for each conversion type (see table below). The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. conversión de formato especificador Original: conversion format specifier The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Los especificadores de formato disponibles son las siguientes: Original: The following format specifiers are available: The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Conversion specifier Explanation Argument type length modifier hh h (none) l ll j z t L % matches literal % N/A N/A N/A N/A N/A N/A N/A N/A N/A c matches a single character N/A N/A char* wchar_t* N/A N/A N/A N/A N/A s matches a character string (a sequence of non-whitespace characters) [set] coincide con una secuencia no vacía de caracteres de set de caracteres . Original: matches a non-empty sequence of character from set of characters. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Si el primer carácter del conjunto es ^, todos los caracteres en el conjunto no coinciden. Si el conjunto comienza con ] o ^] entonces el carácter ] también se incluye en el conjunto . Original: If the first character of the set is ^, then all characters not in the set are matched. If the set begins with ] or ^] then the ] character is also included into the set. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. d coincide con 'entero decimal' un . Original: matches a decimal integer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtol() con la 10 valor para el argumento base Original: The format of the number is the same as expected by strtol() with the value 10 for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. signedchar* or unsignedchar* signedshort* or unsignedshort* signedint* or unsignedint* signedlong* or unsignedlong* signedlonglong* or unsignedlonglong* intmax_t* or uintmax_t* size_t* ptrdiff_t* N/A i coincide con 'entero decimal' un . Original: matches a decimal integer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtol() con la ​0​ valor para el argumento base Original: The format of the number is the same as expected by strtol() with the value ​0​ for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. u coincide con un entero sin signo decimal' . Original: matches a unsigned decimal integer'. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtoul() con la ​0​ valor para el argumento base Original: The format of the number is the same as expected by strtoul() with the value ​0​ for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. o coincide con una 'octal entero' . Original: matches an octal integer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtol() con la 8 valor para el argumento base Original: The format of the number is the same as expected by strtol() with the value 8 for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. x coincide con 'entero hexadecimal' una . Original: matches an hexadecimal integer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtol() con la 16 valor para el argumento base Original: The format of the number is the same as expected by strtol() with the value 16 for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. n devuelve 'número de caracteres leídos hasta el momento' del . Original: returns the number of characters read so far. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Sin entrada se consume. No incrementar el recuento de asignación. Si el especificador de asignación tiene que suprime el operador definido, el comportamiento no está definido Original: No input is consumed. Does not increment the assignment count. If the specifier has assignment-suppressing operator defined, the behavior is undefined The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. a, A e, E f, F g, G coincide con un 'número de punto flotante' . Original: matches a floating-point number. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtof() Original: The format of the number is the same as expected by strtof() The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. N/A N/A float* double* N/A N/A N/A N/A longdouble* p coincide con la aplicación definida secuencia de caracteres que define un 'puntero del' . Original: matches implementation defined character sequence defining a pointer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. printf familia de funciones debe producir la misma secuencia utilizando especificador de formato %p Original: printf family of functions should produce the same sequence using %p format specifier The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. N/A N/A void** N/A N/A N/A N/A N/A N/A Original: pointer to a null-terminated character string specifying how to read the input. La cadena de formato se compone de espacios en blanco (cualquier carácter único espacio en blanco en la cadena de formato consume todos los caracteres de espacio en blanco consecutivos a partir de la entrada), no está en blanco, excepto % personajes (cada personaje tal en las cadenas de formato consume exactamente un carácter idéntico de la entrada) y especificaciones de conversión. Cada especificación de conversión tiene el siguiente formato: Original: The format string consists of whitespace characters (any single whitespace character in the format string consumes all available consecutive whitespace characters from the input), non-whitespace characters except % (each such character in the format strings consumes exactly one identical character from the input) and conversion specifications. Each conversion specification has the following format: The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. % carácter introductorio Original: introductory % character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (opcional) asignación que suprime el carácter *. Si esta opción está presente, la función no se asigna el resultado de la conversión a cualquier argumento recepción . Original: (opcional) assignment-suppressing character *. If this option is present, the function does not assign the result of the conversion to any receiving argument. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (opcional) número entero (mayor que cero) que especifica' máximo ancho de campo, es decir, el número máximo de caracteres que la función se les permitió consumir al hacer la conversión especificada por la especificación de conversión de corriente. Tenga en cuenta que [% s y% puede dar lugar al desbordamiento del búfer si el ancho no está previsto . Original: (opcional) integer number (greater than zero) that specifies maximum field width, that is, the maximum number of characters that the function is allowed to consume when doing the conversion specified by the current conversion specification. Note that %s and %[ may lead to buffer overflow if the width is not provided. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (opcional) longitud' modificador que especifica el tamaño del argumento de recepción, es decir, el tipo de destino real. Esto afecta a la precisión de la conversión y las reglas de desbordamiento. El tipo de destino predeterminado es diferente para cada tipo de conversión (ver tabla a continuación) . Original: (opcional)length modifier that specifies the size of the receiving argument, that is, the actual destination type. This affects the conversion accuracy and overflow rules. The default destination type is different for each conversion type (see table below). The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. conversión de formato especificador Original: conversion format specifier The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Los especificadores de formato disponibles son las siguientes: Original: The following format specifiers are available: The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Conversion specifier Explanation Argument type length modifier hh h (none) l ll j z t L % matches literal % N/A N/A N/A N/A N/A N/A N/A N/A N/A c matches a single character N/A N/A char* wchar_t* N/A N/A N/A N/A N/A s matches a character string (a sequence of non-whitespace characters) [set] coincide con una secuencia no vacía de caracteres de set de caracteres . Original: matches a non-empty sequence of character from set of characters. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Si el primer carácter del conjunto es ^, todos los caracteres en el conjunto no coinciden. Si el conjunto comienza con ] o ^] entonces el carácter ] también se incluye en el conjunto . Original: If the first character of the set is ^, then all characters not in the set are matched. If the set begins with ] or ^] then the ] character is also included into the set. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. d coincide con 'entero decimal' un . Original: matches a decimal integer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtol() con la 10 valor para el argumento base Original: The format of the number is the same as expected by strtol() with the value 10 for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. signedchar* or unsignedchar* signedshort* or unsignedshort* signedint* or unsignedint* signedlong* or unsignedlong* signedlonglong* or unsignedlonglong* intmax_t* or uintmax_t* size_t* ptrdiff_t* N/A i coincide con 'entero decimal' un . Original: matches a decimal integer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtol() con la ​0​ valor para el argumento base Original: The format of the number is the same as expected by strtol() with the value ​0​ for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. u coincide con un entero sin signo decimal' . Original: matches a unsigned decimal integer'. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtoul() con la ​0​ valor para el argumento base Original: The format of the number is the same as expected by strtoul() with the value ​0​ for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. o coincide con una 'octal entero' . Original: matches an octal integer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtol() con la 8 valor para el argumento base Original: The format of the number is the same as expected by strtol() with the value 8 for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. x coincide con 'entero hexadecimal' una . Original: matches an hexadecimal integer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtol() con la 16 valor para el argumento base Original: The format of the number is the same as expected by strtol() with the value 16 for the base argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. n devuelve 'número de caracteres leídos hasta el momento' del . Original: returns the number of characters read so far. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. Sin entrada se consume. No incrementar el recuento de asignación. Si el especificador de asignación tiene que suprime el operador definido, el comportamiento no está definido Original: No input is consumed. Does not increment the assignment count. If the specifier has assignment-suppressing operator defined, the behavior is undefined The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. a, A e, E f, F g, G coincide con un 'número de punto flotante' . Original: matches a floating-point number. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. El formato del número es el mismo como se esperaba por strtof() Original: The format of the number is the same as expected by strtof() The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. N/A N/A float* double* N/A N/A N/A N/A longdouble* p coincide con la aplicación definida secuencia de caracteres que define un 'puntero del' . Original: matches implementation defined character sequence defining a pointer. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. printf familia de funciones debe producir la misma secuencia utilizando especificador de formato %p Original: printf family of functions should produce the same sequence using %p format specifier The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. N/A N/A void** N/A N/A N/A N/A N/A N/A The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
...	-	recibir argumentos Original: receiving arguments The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

Número de recibir argumentos con éxito corresponda o EOF si el fallo se produce antes de la lectura primer argumento recibido fue asignado .

Original:

Number of receiving arguments successfully assigned, or EOF if read failure occurs before the first receiving argument was assigned.

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Ver también

vscanfvfscanfvsscanf (C99)(C99)(C99)	lee la entrada con formato de stdin, una secuencia de archivo o una buffer con lista de argumentos variable Original: reads formatted input from stdin, a file stream or a buffer using variable argument list The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
fgets	recibe una cadena de caracteres a partir de una secuencia de archivo Original: gets a character string from a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
printffprintfsprintfsnprintf (C99)	imprime la salida formateada para stdout, una secuencia de archivo o un tampón Original: prints formatted output to stdout, a file stream or a buffer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
Documentación de C++ para scanf, fscanf, sscanf