javascript又一解密过程,推荐的，会这个基本上好多都能解决了- Javascript

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Javascript 中的 javascript又一解密过程,推荐的，会这个基本上好多都能解决了

出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-09-12 浏览: 144 ::

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另一种希望别人无法修改js的代码 ESC之ESC.wsf可以实现javascript的代码压缩附使用方法

javascript又一解密过程,推荐的，会这个基本上好多都能解决了
[常规准备]
1、首先尝试掌握代码的大体结构。
这需要一定的经验。首先是做hutia已经做了的事情（虽然这一步在这个具体的情况下也可以跳过，但是不推荐如此），先把编码的文字显形。有很多办法可选，有一种办法是把编码的字符串写到textarea里。

点击运行可以看到效果:

<textarea name=fdfe></textarea>
<script>
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</script>

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

于是就得到了如下代码:

点击运行可以看到效果:

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[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

window["eval"]("XXX") 其实就是 window.eval("XXX")的另一种写法。
我们要关心的是作为eval()方法的参数的代码的结构。
把这些代码稍微整理一下（可用带语法高亮的编辑器，也可通过批量替换字符进行代码的格式化，使成对的{}、''和""显得突出），这样就能够看出代码的大致结构如下。

复制代码代码如下:

function(j1,J2,picknick,La4,oddver,outputver) 
{ 
oddver=function(picknick) 
{ 
return(picknick<J2?"":oddver(parseInt(picknick/J2)))+((picknick=picknick%J2)>35?String.fromCharCode(picknick+29):picknick.toString(36)) 
} 
if(true) 
{ 
while(picknick--)outputver[oddver(picknick)]=La4[picknick]||oddver(picknick); 
La4=[function(oddver){return outputver[oddver]}]; 
oddver=function() 
{ 
return '\w+' 
} 
picknick=1 
} 
while(picknick--)if(La4[picknick])j1=j1.replace(new RegExp('\b'+oddver(picknick)+'\b','g'),La4[picknick]); 
return j1 
}(……)

那么整个代码的结构就相当于这个样子：

复制代码代码如下:

既然已经了解了结构，那么基本上就应该没有悬念了。因为这种加密是有着天生的弱点的。
上面所讲的步骤旨在说明一般道理，实际解密时可以凭经验跳过。
[实际解密步骤]
还是利用textarea，利用加密的弱点来实现。
2、始解
把关键点 return j1 改为 textarea.value=j1 即可。

点击运行可以看到效果:
[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

3、卐解
用上面解出的代码继续解，把关键点 return p 改为 textarea.value=p 。

点击运行可以看到效果:
[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

这样就解出了最终的代码。

点击运行可以看到效果:

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

另一种希望别人无法修改js的代码 ESC之ESC.wsf可以实现javascript的代码压缩附使用方法

Javascript 中的 javascript又一解密过程,推荐的，会这个基本上好多都能解决了

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