ASP opentextfile read and write instance code

Object. opentextfile (filename [, iomode [, create [, format])
Parameters
Object: required. The name of the FileSystemObject object.
Filename: required. String expression, indicating the name of the file to be opened.
Iomode: Optional. The input/output mode is one of the following three constants: forreading, forwriting, or forappending.
Create: Optional. Boolean value indicates whether a new file can be created if the specified filename does not exist. True is allowed when a new file is created. Otherwise, false is allowed. The default value is false.
Format: Optional. Indicates the format in which the file is opened. If this parameter is ignored, the file is opened in ASCII format.
Set
The iomode parameter can be set as follows:
Constant Value description
Forreading 1 open the file in read-only mode. You cannot write this file.
Forwriting 2 opens the file in write-only mode. You cannot read this file.
Forappending 8 open the file and write it at the end of the file.
The format parameter can be set as follows:
Constant Value description
Tristateusedefault-2 open a file in the default format.
Tristatetrue-1 open a file in unicode format.
Tristatefalse 0 open the file in ASCII format.
Description
Below Code The following example shows how to use opentextfile to open a file: Copy code The Code is as follows: Sub opentextfiletest
Const forreading = 1, forwriting = 2, forappending = 8
Dim FSO, F
Set FSO = Createobject ("scripting. FileSystemObject ")
Set F = FSO. opentextfile ("C: \ testfile.txt", forwriting, true)
F. Write "hi, hello! "
F. Close
End sub