1 <script>
2 a=62
;
3
4 function encode() {
5 var code = document.getElementById('code'
).value;
6 code = code.replace(/[\r\n]+/g, ''
);
7 code = code.replace(/'/g, "\\'"
);
8 var tmp = code.match(/\b(\w+)\b/
g);
9 tmp.sort();
10 var dict =
[];
11 var i, t = ''
;
12 for(
var i=0; i<tmp .length; i++
) {
13 if(tmp[i] != t) dict.push(t =
tmp[i]);
14 }
15 var len =
dict.length;
16 var ch;
17 for(i=0; i<len; i++
) {
18 ch =
num(i);
19 code = code.replace(
new RegExp('\\b'+dict[i]+'\\b','g'
), ch);
20 if(ch == dict[i]) dict[i] = ''
;
21 }
22 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}("
23 + "'"+code+"',"+a+","+len+",'"+ dict.join('|')+"'.split('|'),0,{}))"
;
24 }
25
26 function num(c) {
27 return(c<a ?'':num(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36));
28 }
29
30 function run() {
31 eval(document.getElementById('code'
).value);
32 }
33
34 function decode() {
35 var code = document.getElementById('code'
).value;
36 code = code.replace(/^eval/, ''
);
37 document.getElementById('code').value =
eval(code);
38 }
39 </a></tmp></script>
40
41
42 <textarea id=code cols=80 rows=20>
43
44 </textarea><br /><input type=button οnclick=encode() value=编码/>
45 <input type=button οnclick=run() value=执行/>
46 <input type=button οnclick=decode() value=解码/>
转载于:https://www.cnblogs.com/CHEUNGKAMING/p/4081099.html
相关资源：JAVA上百实例源码以及开源项目
