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 = "http://www.mamicode.com/eval(function(p,a,c,k,e,d){e=function(c){return(c35?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 =http://www.mamicode.com/ eval(code);38 }39 </a></tmp></script>40 41 42 <textarea id=code cols=80 rows=20>43 44 </textarea><br /><input type=button onclick=encode() value=http://www.mamicode.com/编码/>"color: #008080;">45 <input type=button onclick=run() value=http://www.mamicode.com/执行/>"color: #008080;">46 <input type=button onclick=decode() value=http://www.mamicode.com/解码/>