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首页 > 脚本专栏 > vbs > 脚本自身运行次数

可以修改脚本自身运行次数的vbs(Self modifying script)

作者:

通过脚本修改脚本的内容,这里以统计脚本运行次数为例,想学习vbs的朋友可以参考下
This script behaves like a virus
This script shows you how a script can be self modifying, like viruses.
It is a warning about the possibilities of macro viruses.

File Name : selfmodify.vbs
Requirement : none
Author : Jean-Luc Antoine
Submitted : 01/09/2001
Category : Other

复制代码 代码如下:

Const n = 1
Dim f, a, s, w
w = WScript.ScriptFullName
Set f = CreateObject("Scripting.FileSystemObject")
Set a = f.OpenTextFile(w, 1)
a.SkipLine
s = chr(13) & Chr(10) & a.ReadAll
a.Close

Set a = f.CreateTextFile(w, True)
a.Write "Const n = " & n + 1 & s
a.Close

WScript.echo "This script has been run " & n & " times"


原理就是每次运行脚本自身的代码就会被修改Const n = 1,这个1是一直变化的。

原文:http://www.interclasse.com/scripts/selfmodify.php
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