fwrite_bytesT_fwrite_bytesFwriteBytesFwriteBytesfwrite_bytes (算子名称)

名称

fwrite_bytesT_fwrite_bytesFwriteBytesFwriteBytesfwrite_bytes — Write bytes to a binary file.

参数签名

描述

该算子 fwrite_bytesfwrite_bytesFwriteBytesFwriteBytesFwriteBytesfwrite_bytes writes bytes to the output file defined by FileHandleFileHandleFileHandleFileHandlefileHandlefile_handle. The output file must have been opened with open_fileopen_fileOpenFileOpenFileOpenFileopen_file in binary format.

The data to be written to the file is specified as DataToWriteDataToWriteDataToWriteDataToWritedataToWritedata_to_write.

The number of bytes that are written to the file is returned in NumberOfBytesWrittenNumberOfBytesWrittenNumberOfBytesWrittenNumberOfBytesWrittennumberOfBytesWrittennumber_of_bytes_written.

运行信息

• 多线程类型:可重入(与非独占操作符并行运行)。
• 多线程作用域:全局(可以从任何线程调用)。
• 未经并行化处理。

参数表

例程 (HDevelop)

* Write a binary file byte by byte.
open_file (Filename, 'append_binary', FileHandle)
fwrite_bytes(FileHandle, [0x97, 99, 102], BytesWritten)
close_file (FileHandle)

结果

If an output file is open in binary mode and no file write error occurs, 该算子 fwrite_bytesfwrite_bytesFwriteBytesFwriteBytesFwriteBytesfwrite_bytes returns 2 ( H_MSG_TRUE) . Otherwise, an exception is raised.

可能的前置算子

open_fileopen_fileOpenFileOpenFileOpenFileopen_file

可能的后置算子

close_fileclose_fileCloseFileCloseFileCloseFileclose_file

可替代算子

fwrite_stringfwrite_stringFwriteStringFwriteStringFwriteStringfwrite_string

参考其它

open_fileopen_fileOpenFileOpenFileOpenFileopen_file, close_fileclose_fileCloseFileCloseFileCloseFileclose_file, fread_bytesfread_bytesFreadBytesFreadBytesFreadBytesfread_bytes

模块

Foundation

---