Low-Level-Datei-I/O

Lesen und Schreiben von Operationen auf Byte- oder Zeichenebene

Sie können binäre Dateien und Textdateien öffnen und schließen und auf Byte- und Zeichenebene lesen, schreiben und navigieren. Zur Arbeit mit Dateien auf verschiedenen Ebenen siehe Supported File Formats for Import and Export.

Funktionen

alle erweitern

Öffnen, Schließen und Lesen von Dateien

`fopen`	Open file or obtain information about open files
`fclose`	Close one or all open files
`fread`	Read data from binary file
`fscanf`	Read data from text file
`fgetl`	Read line from file, removing newline characters
`fgets`	Read line from file, keeping newline characters
`fileread`	Read contents of file as text
`openedFiles`	File identifiers of all open files (Seit R2024a)
`ferror`	File I/O error information

Navigieren von Dateien

`ftell`	Current location of file position pointer in file
`fseek`	Move file position pointer to specified position in file
`frewind`	Move file position pointer to beginning of open file
`feof`	Test for end of file

Schreiben in Datei

`fwrite`	Write data to binary file
`fprintf`	Write data to text file

Themen

Import Text Data Files with Low-Level I/O
Read data from text files at the character level using low-level I/O functions.
Import Binary Data with Low-Level I/O
Read data from binary files at the byte level using low-level I/O functions.
Export to Text Data Files with Low-Level I/O
Write text files at the character level, including combinations of numeric and character data and nonrectangular files, using the low-level fprintf function.
Export Binary Data with Low-Level I/O
Write binary files at the byte level using the low-level fwrite function.