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File I/O di basso livello

Leggere o scrivere operazioni a livello di byte o di carattere

Aprire, chiudere, leggere, scrivere e navigare in file binari e di testo a livello di byte e di caratteri. Per lavorare con i file a livello di variabili, vedere Supported File Formats for Import and Export.

Funzioni

espandi tutto

Apertura, chiusura e lettura di file

`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 (Da R2024a)
`ferror`	File I/O error information

Navigazione nel file

`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

Scrittura su file

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

Argomenti

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.