Lua file I/O operations

1.

Io. Open (filename [, mode])

Function: open a file in the specified mode. If the file is successfully opened, the file handle is returned. If the file fails, the NIL + error message is returned.

Mode:

"R": Read mode (default );

"W": Write mode;

"A": Add mode;

2.

File: Write (...)

Function: output the file content in the specified parameter format. The parameter must be a character or number. to output other values, use tostring or string. Format for conversion.

3.

File: Close ()

Function: Close the file. I am too lazy to 'safely Delete the hardware' when I pull a USB flash drive. the same is true for this command. Lua automatically recycles garbage ........

 

Routine:

 1 File = Io. Open ( "  A.txt " , "  W  "  )  2   --  Open a.txt with 'write mode ', and create a file if it does not exist.  3   4   File: Write ( "  Hello world.  "  )  5   -- Write a string to a file  6   7   File: Close  ()  8   --[[  Close files,  9   I almost never write close  10   In order not to mislead you, have you written down close?  11   Does it mean that I am a good teacher?  12   ]