WRITE

• Source: https://www.freebasic.net/wiki/wikka.php?wakka=KeyPgWritePp
• Last revised: 2025-06-01

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Outputs a comma-separated list of values to a text file or device

Syntax

` Write # filenum , [ expressionlist ]

`

Parameters

filenum

File number of an open file or device opened for Output or Append.

expressionlist

Comma-separated list of items to print

Description

Outputs the values in expressionlist to the text file or device bound to filenum. The values are separated with commas, and strings are enclosed in double quotes. Numeric values greater than zero (0) and less than one (1) are prefixed with a zero (0) if none is given (e.g., a value of -.123 will be output as -0.123). Extra zeroes are truncated.

If no expression list is given, Write # outputs a carriage return (note that the comma after filenum is still necessary, even if no expression list is given).

The purpose of Write # is to create a file that can be read back by using Input #.

Note:

• Using Write # is naturally dedicated to Output/Append Access file mode.

• It is also allowed in Binary/Random Access file mode, but this was never well tested and results may vary.

Examples

start GeSHi

Const filename As String = "file.txt"

Dim filenum As Integer = FreeFile()
If 0 <> Open(filename, For Output, As filenum) Then
    Print "error opening " & filename & " for output."
    End -1
End If

Dim i As Integer = 10
Dim d As Double = 123.456
Dim s As String = "text"

Write #filenum, 123, "text", -.45600
Write #filenum,
Write #filenum, i, d, s

end GeSHi

will produce the file:

123,"text",-0.456

10,123.456,"text"

Differences from QB

• None

See also

• Write
• Print #
• ? #
• Input #

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