【转】eval(function(p,a,c,k,e,d)系列解压缩javascript程序

在线美化解压 http://js.clicki.cc/
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转自http://www.jb51.net/article/9705.htm
<script type="text/javascript">
a = 62;
function encode() {
    var code = document.getElementById('code').value;
    code = code.replace(/[\r\n]+/g, '');
    code = code.replace(/'/g, "http://www.cnblogs.com/feima-lxl/admin/file://'/");
    var tmp = code.match(/\b(\w+)\b/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;
    code = code.replace(/^eval/, '');
    document.getElementById('code').value = eval(code);

}
 < /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 >