Const ForReading = 1, ForWriting = 2, ForAppending = 3
Dim fs, f
Set fs = CreateObject("Scripting.FileSystemObject")
Set f = fs.OpenTextFile("c:\testfile.txt", ForAppending,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TristateFalse)
^^^^^^^^^^^^^^
f.Write "Hello world!"
f.Close
---------------
Run-time error '5':
Invalid procedure call or argument
-----------------
Dim fs, f
Set fs = CreateObject("Scripting.FileSystemObject")
Set f = fs.OpenTextFile("c:\testfile.txt", ForAppending,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TristateFalse)
^^^^^^^^^^^^^^
f.Write "Hello world!"
f.Close
---------------
Run-time error '5':
Invalid procedure call or argument
-----------------
这些都是系统常数,不需要专门设置
Constant Value Description
ForReading 1 Open a file for reading only. You can't write to this file.
ForWriting 2 Open a file for writing.
ForAppending 8 Open a file and write to the end of the file. 在第2个参数位置设置1、2、8都是正确的但设置3的确是有毛病的!!!
呵呵,这版的MSDN有毛病,在MSDN July 2001里已经把这段代码该了:
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 "Hello world!"
f.Close
End Sub呵呵,看来MSDN也害了一些人,建议用MSDN 2001 Oct的