C-language file manipulation functions

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1. opening of the file

Function Prototypes:

FILE *fopen (      constchar *filename,     constChar *  Mode   );   *_wfopen (      const wchar_t *filename,     const wchar_t *mode   );

Parameter description:

FileName: File name

Mode: How to open a file

return value:

Success: Returns a pointer to the open file

Failed: returned null

Character meaning

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"R" Open text file Read Only "W" Create text file only Write "A" supplement, if file does not exist then create a "r+" to open a text file read            /write "w+" to create a text file read/write "A +" to open or create a file supplement "B" binary file (can be used with each of the above) "T" This file (the default)

C-language file manipulation functions