: \! R5 {- o' w8 c 3 F, ?7 N1 k8 b& N3 j" j 二、脚本语言与WSH的关系 9 E( N7 K& H# c2 d3 C. x( I3 d 3 y6 I. h; c0 P# l. W5 ? 大家知道,脚本语言(包括javascript和VBscript语言等)经常会被植入网页之中(其中包括 HTML 页面客户机端和 ASP页面服务器端) 。对于植入 HTML 页面的脚本,其所需的解析引擎会由 IE 这样的网页浏览器载入;对于植入 ASP页面的脚本,其所需的解析引擎会由 IIS( Internet Information Services)提供。而对于出现在 HTML 和ASP 页面之外的脚本(它们常以独立的文件形式存在),就需要经由 WSH 来 处理了。需要说明的是:WSH 要想正常工作,还要安装IE 3.0或更高版本的 IE,因为 WSH 在工作时会调用 IE 中的 VBScript 和 javascript 解析引擎。[未结束][iduba_page]在这些被植于网页的脚本语言中,绝大多数是与网络安全无关的。但也有少数别有用心的好事者,把一些严重危及网络安全的代码(我们常常称之为“恶意代码”,他们通常都要通过修改注册表达到“恶意”的目的!),混放在正常的脚本之中,常常让我们防不胜防。但是,如果我们了解一点关于脚本语言的知识,这些“伎俩”都是非常容易识破的。还是让我们从几个简单 的实例开始吧……1 [# C9 M# t' f% ]' j; N
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三、WSH应用举例 1 q" P2 X# h, X" }% J6 U . g/ m9 S8 r: y2 F2 a* b( R5 K WSH可以处理脚本程序,怎样阅读和编写WSH的脚本源文件呢?只要你有一点Basic(会VB的编程更好,呵呵)语言的基础,学会看懂WSH脚本语言的程序并不是一件难事。去C:WINDOWSSAMPLESWSH目录以下将看看吧!里面提供了几类经典的脚本例子,而且分别提供了VBScript和 javascript两个版本,我们只要用记事本打开它们并仔细研究就不难学到一些基本的WSH应用。 V, u+ x/ |8 _/ b$ f& l* g
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你只需在记事本中依次输入以下每个实例中的代码,并保存为相应的“*.vbs”文件,双击这个文件,你就可以看到相应的效果了。, s1 g4 s" w. N! _0 M. X# Y
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6 X; j1 _) P+ m |( f 6 [" u% N( F/ @8 z ! U. p% o' P& H; ~! _3 s % D& b o8 o5 w% P9 v5 L # p3 B* n! K0 F4 U8 s % O1 ?2 Z+ {0 O/ k: u1 QQ: How do I open script files? Trying the above solution makes Windows XP throw an error?! O; M; Q9 b" |' E) n7 z; {
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A:This is similar to the *.js association problem. Some machines seem to,for some reason, lose their *.vbs association. It's not that the filesopen with dreamweaver or whatever -- it's that the machine just doesn'tknow how to run them. If you have a scheduled task, "Could not run"will appear in the status column. * C; c6 q' s0 ?5 V7 W* W! b 7 z, T% u3 G' o. CSo, you're a smart person andread through the FAQ. You find the *.js extension problem, and you trythat fix: you run it as "wscript c:\path\to cript.vbs". But that, inturn, produces a pop-up error, this time a "Windows Scripting Host"error: "There is no script engine for file extension '.vbs'." So, forsome reason, wscript doesn't even know what to do with *.vbs files.' T5 B" J8 |# M" U( @9 j
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The solution to this problem is to run the script as: ( r- m& J3 l; \; M4 x# g9 E9 U ' p; N$ @$ r1 L) @$ Cwscript //e:vbscript c:\path\to cript.vbs6 p' b0 J# p$ M$ {
5 Z6 {5 L4 {2 u3 W$ PThe "//e:vbscript" tells wscript to use the vbscript engine to parse the script. It will then run correctly. 2 T3 ]; `. l) ^+ s& ` , f6 p9 s0 T( BA few alternative solutions, perhaps easier are:5 y2 S P1 p4 ~& m1 O
Renameit .vbe (VBScript Encoded Script File). Not sure if this is a bad idea,but it seemed to work for some scripts. Make a new association for VBS.Open up my computer, select Tools menu-> Folder Options, and go tothe File Types tab. There probably isn't a VBS association listed ifyou have this problem. Select New, type in VBS, and hitAdvanced>>. Then, from the pull-down menu, select "VBScriptScript File". Making this selection automatically takes care of theassociation, along with the //e:vbscript problem. This is probably the"correct" solution... 0 z& d9 J! x8 y M F
This problems usually occurs only on WindowsXP machines, but the cause is not known. A Microsoft KB article on thisissue can be found here. Thanks goes to Bob_2k for writing this FAQentry.