Eval(function(p,a,c,k,e,r)

形如:

eval(function (p, a, c, k, e, r) {
  ******************
  }
解法一:eval改成document.write或者console.log


解法二: 将以下内容另存为html进行解码:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JS解密</title>
</head>

<body>
    <script>   
    a=62;   
    function encode() {   
     var code = document.getElementById('code').value;   
     code = code.replace(/[ ]+/g, '');   
     code = code.replace(/'/g, "\'");   
     var tmp = code.match(/ (w+) /g);   
     tmp.sort();   
     var dict = [];   
     var i, t = '';   
     for(var i=0; i<tmp.length; i++) {   
     if(tmp[i] != t) dict.push(t = tmp[i]);   
     }   
     var len = dict.length;   
     var ch;   
     for(i=0; i<len; i++) {   
     ch = num(i);   
     code = code.replace(new RegExp('\b'+dict[i]+'\b','g'), ch);   
     if(ch == dict[i]) dict[i] = '';   
     }   
     document.getElementById('code').value = "eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p}("   
     + "'"+code+"',"+a+","+len+",'"+ dict.join('|')+"'.split('|'),0,{}))";   
    }  

    function num(c) {   
     return(c<a?'':num(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36));   
    }  

    function run() {   
     eval(document.getElementById('code').value);   
    }  

    function decode() {   
     var code = document.getElementById('code').value;   
     code2 = code.replace(/^eval/, '');   
     //alert(code);  
     document.getElementById('code').value = eval(code2);   
    }   
    </script>  

    <textarea id=code cols=80 rows=20> 

    </textarea>  


    <input type=button onclick=encode() value=编码>   
    <input type=button onclick=run() value=执行>   
    <input type=button onclick=decode() value=解码>  
</body>
</html>