C-style file input/output
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CI / O的C + +标准库的子集实现C-风格的流输入/输出操作。
<cstdio>头提供了通用的文件操作狭窄和多字节字符的输入/输出功能，支持和供应职能和<cwchar>头提供的功能与宽字符输入/输出功能. Original:
The C I/O subset of the C++ standard library implements C-style stream input/output operations. The
<cstdio> header provides generic file operation support and supplies functions with narrow and multibyte character input/output capabilities, and the <cwchar> header provides functions with wide character input/output capabilities. The text has been machine-translated via Google Translate.
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Ç流std::FILE类型的对象只能访问和操纵通过指针的类型std::FILE*（注：有可能创建一个本地对象类型std::FILE有效的FILE*提领和复制，使用该副本的地址I / O功能是未定义的行为）。每个C流与外部物理设备（文件，标准输入流，打印机，串行端口等）.
Original:
C streams are objects of type std::FILE that can only be accessed and manipulated through pointers of type std::FILE* (Note: while it may be possible to create a local object of type std::FILE by dereferencing and copying a valid FILE*, using the address of such copy in the I/O functions is undefined behavior). Each C stream is associated with an external physical device (file, standard input stream, printer, serial port, etc).
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Ç流可以被用于两个未格式化和格式化的输入和输出。他们是语言环境敏感的，必要时可进行宽/多字节转换。与C + +流，每个流与自己的地区，所有的C流访问相同的区域对象：一个最近安装的std::setlocale.
Original:
C streams can be used for both unformatted and formatted input and output. They are locale-sensitive and may perform wide/multibyte conversions as necessary. Unlike C++ streams, where each stream is associated with its own locale, all C streams access the same locale object: the one most recently installed with std::setlocale.
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除了特定的信息系统需要访问的设备（如POSIX文件描述符），每一个C的流对象持有以下
Original:
Besides the system-specific information necessary to access the device (e.g. a POSIX file descriptor), each C stream object holds the following:
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1)
字符宽度：窄或宽的
Original:
Character width: narrow or wide
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2)
缓冲状态：无缓冲，行缓冲，全缓冲.
Original:
Buffering state: unbuffered, line-buffered, fully buffered.
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3)
的缓冲液，其中可被一个外部的，用户提供缓冲区.
Original:
The buffer, which may be replaced by an external, user-provided buffer.
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4)
I / O模式：输入，输出，或更新（包括输入和输出）.
Original:
I/O mode: input, output, or update (both input and output).
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5)
二进制/文本模式指示灯.
Original:
Binary/text mode indicator.
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6)
文件的状态指示灯.
Original:
End-of-file status indicator.
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7)
错误状态指示灯.
Original:
Error status indicator.
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8)
文件位置指示器（一个对象类型std::fpos_t），，，宽字符流的解析状态，包括（类型的对象mbstate_t）
Original:
File position indicator (an object of type std::fpos_t), which, for wide character streams, includes the parse state (an object of type mbstate_t).
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[编辑] 功能
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. | |
| 打开一个文件 Original: opens a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 打开一个现有的流用不同的名称 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. （函数） | |
| 关闭一个文件 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. （函数） | |
| 实际的文件同步输出流 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. （函数） | |
| 宽字符I / O和窄字符之间切换文件流I / O Original: switches a file stream between wide character I/O and narrow character I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 设置文件流的缓冲区 Original: sets the buffer for 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. （函数） | |
| 设置文件流的缓冲区，其大小 Original: sets the buffer and its size for 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. （函数） | |
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. | |
| 从文件读取 Original: reads from a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 写入到一个文件中 Original: writes to a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
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. | |
Original: Narrow character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| 从文件流中获取一个字符 Original: gets a character 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. （函数） | |
| 得到一个字符串从一个文件流 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. （函数） | |
| 将一个字符写入一个文件流 Original: writes a character to 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. （函数） | |
| 将一个字符串写入一个文件流 Original: writes a character string to 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. （函数） | |
| 从stdin中读取一个字符 Original: reads a character from stdin The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 从stdin读取一个字符的字符串 Original: reads a character string from stdin The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 将一个字符写入stdout Original: writes a character to stdout The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 写一个字符串stdout Original: writes a character string to stdout The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 把一个字符到一个文件流 Original: puts a character back into 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. （函数） | |
Original: Wide character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| 得到一个宽字符的文件流 Original: gets a wide character 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. （函数） | |
| 获取宽字符串从文件流 Original: gets a wide 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. （函数） | |
| 一个宽字符写入一个文件流 Original: writes a wide character to 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. （函数） | |
| 宽字符串写入一个文件流 Original: writes a wide string to 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. （函数） | |
| 读取一个字符stdin Original: reads a wide character from stdin The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 写一个宽字符stdout Original: writes a wide character to stdout The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 把一个宽字符到一个文件流 Original: puts a wide character back into 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. （函数） | |
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. | |
Original: Narrow/multibyte character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| stdin，文件流或缓冲区的读取格式的输入 Original: reads formatted input from stdin, 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. （函数） | |
| （C++11） （C++11） （C++11） |
stdin，一个文件流或buffer 使用可变参数列表的读取格式的输入 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. （函数） |
| （C++11） |
打印格式化输出到stdout，文件流或缓冲区 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. （函数） |
| 打印格式化的输出stdout，一个文件流或buffer 使用可变参数列表 Original: prints formatted output to stdout, 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. （函数） | |
Original: Wide character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| stdin，文件流或缓冲区读取格式的宽字符输入 Original: reads formatted wide character input from stdin, 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. （函数） | |
| （C++11） （C++11） （C++11） |
stdin，的文件stream 或使用可变参数列表的缓冲区读取格式的宽字符输入 Original: reads formatted wide character 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. （函数） |
| 打印格式化宽字符输出到stdout，文件流或缓冲区 Original: prints formatted wide character 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. （函数） | |
| 打印格式化宽字符输出到stdout，的文件stream 或使用可变参数列表的缓冲区 Original: prints formatted wide character output to stdout, 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. （函数） | |
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. | |
| 返回当前的文件指针位置 Original: returns the current 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. （函数） | |
| 获取文件位置指示器 Original: gets 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. （函数） | |
| 在一个文件中的文件位置指示符移动到特定的位置 Original: moves the file position indicator to a specific location in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 在一个文件中的文件位置指示符移动到特定的位置 Original: moves the file position indicator to a specific location in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 移动的文件，在一个文件中的开始位置指示器 Original: moves the file position indicator to the beginning in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
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. | |
| 清除错误 Original: clears errors The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 检查文件结束 Original: checks for the end-of-file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 检查文件错误 Original: checks for a file error The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 显示一个字符串相应的电流误差stderr Original: displays a character string corresponding of the current error to stderr The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
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. | |
| 删除一个文件 Original: erases a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 重命名文件 Original: renames a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 创建并打开一个临时的，自动删除文件 Original: creates and opens a temporary, auto-removing file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
| 返回一个唯一的文件名 Original: returns a unique filename The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数） | |
[编辑] 类型
| Defined in header
<cstdio> | |
| 类型
Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
| FILE | 类型，能够保持一个CI / O流控制所需的所有信息
Original: type, capable of holding all information needed to control a C I/O stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| fpos_t | 的类型，能够唯一地指定在一个文件中的位置
Original: type, capable of uniquely specifying a position in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[编辑] 宏
| Defined in header
<cstdio> | |
| stdin stdout stderr |
表达的类型FILE*与 与错误输出流的类型的输出streamFILE*expression的类型 的的输入streamFILE*expression的 Original: expression of type FILE* associated with the input stream expression of type FILE* associated with the output stream expression of type FILE* associated with the error output stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （宏不变） |
| EOF |
整型常量表达式的类型int和负价值 Original: integer constant expression of type int and negative value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （宏不变） |
| FOPEN_MAX |
可以同时打开的文件数 Original: number of files that can be open simultaneously The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （宏不变） |
| FILENAME_MAX |
大小需要的为char数组以保存最长的支持文件名 Original: size needed for an array of char to hold the longest supported file name The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （宏不变） |
| BUFSIZ |
std::setbuf所用的缓冲区的大小 Original: size of the buffer used by std::setbuf The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （宏不变） |
| _IOFBF _IOLBF _IONBF |
到std::setbuf的参数，表示完全缓冲的I /O argumentstd::setbuf指示线表示非缓冲I / O缓冲的I /O argumentstd::setbuf Original: argument to std::setbuf indicating fully buffered I/O argument to std::setbuf indicating line buffered I/O argument to std::setbuf indicating unbuffered I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （宏不变） |
| SEEK_SET SEEK_CUR SEEK_END |
参数为std::fseek表明寻求从开始的file argumentstd::fseek 寻求从文件末尾寻求从当前文件positionstd::fseekargument的 Original: argument to std::fseek indicating seeking from beginning of the file argument to std::fseek indicating seeking from the current file position argument to std::fseek indicating seeking from end of the file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （宏不变） |
| TMP_MAX |
唯一的文件名，可以产生std::tmpnam最大数目 Original: maximum number of unique filenames that can be generated by std::tmpnam The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （宏不变） |
| L_tmpnam |
大小需要一个char数组来保存结果的std::tmpnam Original: size needed for an array of char to hold the result of std::tmpnam The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （宏不变） |
