把下列代碼儲存為.html直接在浏覽器中打開就能用
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html>
<head>
<title>Javascript Compressor</title>
<meta http-equiv="Content-Type" content="text/html; charset=GB2312" />
<script type="text/javascript">
function ICommon(that)
{
if(that!=null)
that.inherit=Common.prototype.inherit;
that.specialize=Common.prototype.specialize
}
return that
};
ICommon.specialize=function(p,c)
if(!p)p=
{};
if(!c)c=p.constructor;
if(c==
{}.constructor) c=new Function("this.inherit()");
c.valueOf=new Function("return this");
c.valueOf.prototype=new this.valueOf;
c.valueOf.prototype.specialize(p);
c.prototype=new c.valueOf;
c.valueOf.prototype.constructor=c.prototype.constructor=c;
c.ancestor=this;
c.specialize=arguments.callee;
c.ancestorOf=this.ancestorOf;
return c
ICommon.valueOf=new Function("return this");
ICommon.valueOf.prototype=
constructor:ICommon,inherit:function()
return arguments.callee.caller.ancestor.apply(this,arguments)
},specialize:function(that)
if(this==this.constructor.prototype&&this.constructor.specialize)
return this.constructor.valueOf.prototype.specialize(that)
}
for(var i in that)
switch(i)
case"constructor":case"toString":case"valueOf":continue
}
if(typeof that[i]=="function"&&that[i]!=this[i])
that[i].ancestor=this[i]
this[i]=that[i]
if(that.toString!=this.toString&&that.toString!=
{}.toString)
that.toString.ancestor=this.toString;
this.toString=that.toString
return this
function Common()
this.Common=ICommon.specialize(
constructor:Common,toString:function()
return"[common "+(this.constructor.className||"Object")+"]"
},instanceOf:function(klass)
return this.constructor==klass||klass.ancestorOf(this.constructor)
});
Common.className="Common";
Common.ancestor=null;
Common.ancestorOf=function(klass)
while(klass&&klass.ancestor!=this) klass=klass.ancestor;
return Boolean(klass)
Common.valueOf.ancestor=ICommon;
function ParseMaster()
var E=0,R=1,L=2;
var G=/\(/g,S=/\$\d/,I=/^\$\d+$/,T=/(['"])\1\+(.*)\+\1\1$/,ES=/\\./g,Q=/'/,DE=/\x01[^\x01]*\x01/g;
var self=this;
this.add=function(e,r){
if(!r)r="";
var l=(_14(String(e)).match(G)||"").length+1;
if(S.test(r)){
if(I.test(r)){
r=parseInt(r.slice(1))-1
}else{
var i=l;
var q=Q.test(_14(r))?'"':"'";
while(i) r=r.split("$"+i--).join(q+"+a[o+"+i+"]+"+q);
r=new Function("a,o","return"+q+r.replace(T,"$1")+q)
_33(e||"/^$/",r,l)
this.exec=function(s)
_3.length=0;
return _30(_5(s,this.escapeChar).replace(new RegExp(_1,this.ignoreCase?"gi":"g"),_31),this.escapeChar).replace(DE,"")
this.reset=function()
_1.length=0};
var _3=[];
var _1=[];
var _32=function()
{ return"("+String(this[E]).slice(1,-1)+")" };
_1.toString=function()
{return this.join("|")};
function _33()
arguments.toString=_32;
_1[_1.length]=arguments
function _31()
if(!arguments[0]) return"";
var i=1,j=0,p;
while(p=_1[j++])
if(arguments[i])
var r=p[R];
switch(typeof r)
case"function":return r(arguments,i);
case"number":return arguments[r+i]
}
var d=(arguments[i].indexOf(self.escapeChar)==-1)?"":"\x01"+arguments[i]+"\x01";
return d+r
}else i+=p[L]
function _5(s,e)
{return e?s.replace(new RegExp("\\"+e+"(.)","g"),function(m,c)
{ _3[_3.length]=c; return e }):s};
function _30(s,e)
{var i=0;return e?s.replace(new RegExp("\\"+e,"g"),function()
{ return e+(_3[i++]||"")}):s };
function _14(s)
{return s.replace(ES,"")}
ParseMaster.prototype=
{ constructor:ParseMaster,ignoreCase:false,escapeChar:"" };
if(/MSIE 5.0/.test(navigator.userAgent)) new function()
var ap=function(f,o,a)
{f.apply(o,a)};
if(''.replace(/^/,String))
var _28=String.prototype.replace;
var _29=function(e,r)
var m,n="",s=this;
while(s&&(m=e.exec(s)))
n+=s.slice(0,m.index)+ap(r,this,m);
s=s.slice(m.lastIndex)
return n+s
};
String.prototype.replace=function(e,r)
this.replace=(typeof r=="function")?_29:_28;
return this.replace(e,r)
if(!Function.apply)
var APPLY="apply-"+Number(new Date);
ap=function(f,o,a)
var r;
o[APPLY]=f;
switch(a.length)
case 0:r=o[APPLY]();break;
case 1:r=o[APPLY](a[0]);break;
case 2:r=o[APPLY](a[0],a[1]);break;
case 3:r=o[APPLY](a[0],a[1],a[2]);break;
case 4:r=o[APPLY](a[0],a[1],a[2],a[3]);break;
default:var aa=[],i=a.length-1;do aa[i]="a["+i+"]";while(i--);eval("r=o[APPLY]("+aa+")")
delete o[APPLY];
return r
if(typeof ICommon=="function") ICommon.valueOf.prototype.inherit=function()
return ap(arguments.callee.caller.ancestor,this,arguments)
if(![].push) Array.prototype.push=function()
for(var i=0;i<arguments.length;i++)
this[this.length]=arguments[i]
return this.length
};
if(![].pop) Array.prototype.pop=function()
var i=this[this.length-1];
this.length--;
return i
function pack(_7,_0,_2,_8)
var I="$1";_7+="\n";
_0=Math.min(parseInt(_0),95);
function _15(s)
var i,p;
for(i=0;(p=_6[i]);i++)
{s=p(s)}
return s
var _25=function(p,a,c,k,e,d)
while(c--) if(k[c]) p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);
return p
var _26=function()
if(!''.replace(/^/,String))
while(c--)d[e(c)]=k[c]||e(c);
k=[function(e)
{return d[e]}];
e=function()
{return'\\w+'};
c=1
var _6=[];
function _4(p)
_6[_6.length]=p
function _18(s)
var p=new ParseMaster;
p.escapeChar="\\";
p.add(/'[^'\n\r]*'/,I);
p.add(/"[^"\n\r]*"/,I);
p.add(/\/\/[^\n\r]*[\n\r]/," ");
p.add(/\/\*[^*]*\*+([^\/][^*]*\*+)*\//," ");
p.add(/\s+(\/[^\/\n\r\*][^\/\n\r]*\/g?i?)/,"$2");
p.add(/[^\w\x24\/'"*)\?:]\/[^\/\n\r\*][^\/\n\r]*\/g?i?/,I);
if(_8)p.add(/;;;[^\n\r]+[\n\r]/);
p.add(/\(;;\)/,I);
p.add(/;+\s*([};])/,"$2");
s=p.exec(s);
p.add(/(\b|\x24)\s+(\b|\x24)/,"$2 $3");
p.add(/([+\-])\s+([+\-])/,"$2 $3");
p.add(/\s+/,"");
return p.exec(s)
function _17(s)
p.add(/((\x24+)([a-zA-Z_]+))(\d*)/,function(m,o)
var l=m[o+2].length;
var s=l-Math.max(l-m[o+3].length,0);
return m[o+1].substr(s,l)+m[o+4]
});
var r=/\b_[A-Za-z\d]\w*/;
var k=_13(s,_9(r),_21);
var e=k.e;
p.add(r,function(m,o)
{return e[m[o]]});
function _16(s)
if(_0>62)s=_20(s);
var e=_12(_0);
var r=(_0>62)?/\w\w+/ :/\w+/;
k=_13(s,_9(r),e);
return s&&_27(p.exec(s),k)
function _13(s,r,e)
var a=s.match(r);
var so=[];
var en=
var pr=
if(a)
var u=[];
var p=
var v=
var c=
var i=a.length,j=0,w;
do
w="$"+a[--i];
if(!c[w])
c[w]=0;
u[j]=w;
p["$"+(v[j]=e(j))]=j++
c[w]++
while(i);
i=u.length;
w=u[--i];
if(p[w]!=null)
so[p[w]]=w.slice(1);
pr[p[w]]=true;
c[w]=0
u.sort(function(m1,m2)
{return c[m2]-c[m1]});
j=0;
if(so[i]==null) so[i]=u[j++].slice(1);
en[so[i]]=v[i]
while(++i<u.length)
return
{s:so,e:en,p:pr}
function _27(p,k)
var E=_10("e\\(c\\)","g");
p="'"+_5(p)+"'";
var a=Math.min(k.s.length,_0)||1;
var c=k.s.length;
for(var i in k.p) k.s[i]="";
k="'"+k.s.join("|")+"'.split('|')";
var e=_0>62?_11:_12(a);
e=String(e).replace(/_0/g,"a").replace(/arguments\.callee/g,"e");
var i="c"+(a>10?".toString(a)":"");
if(_2)
var d=_19(_26);
if(_0>62)d=d.replace(/\\\\w/g,"[\\xa1-\\xff]");
else if(a<36)d=d.replace(E,i);
if(!c)d=d.replace(_10("(c)\\s*=\\s*1"),"$1=0")
var u=String(_25);
{ u=u.replace(/\
{/,"{"+d+";") }
u=u.replace(/"/g,"'");
if(_0>62){ u=u.replace(/'\\\\b'\s*\+|\+\s*'\\\\b'/g,"") }
if(a>36||_0>62||_2){ u=u.replace(/\{/,"
{e="+e+";") }else{ u=u.replace(E,i) }
u=pack(u,0,false,true);
var p=[p,a,c,k];
if(_2){ p=p.concat(0,"
{}") }
return"eval("+u+"("+p+"))\n"
function _12(a){return a>10?a>36?a>62?_11:_22:_23:_24};
var _24=function(c){ return c };
var _23=function(c){ return c.toString(36) };
var _22=function(c){ return(c<_0?'':arguments.callee(parseInt(c/_0)))+((c=c%_0)>35?String.fromCharCode(c+29):c.toString(36)) };
var _11=function(c){ return(c<_0?'':arguments.callee(c/_0))+String.fromCharCode(c%_0+161) };
var _21=function(c){ return"_"+c };
function _5(s){ return s.replace(/([\\'])/g,"\\$1") };
function _20(s){ return s.replace(/[\xa1-\xff]/g,function(m){ return"\\x"+m.charCodeAt(0).toString(16) }) };
function _10(s,f){ return new RegExp(s.replace(/\$/g,"\\$"),f) };
function _19(f){ with(String(f))return slice(indexOf("
{")+1,lastIndexOf("}")) };
function _9(r){ return new RegExp(String(r).slice(1,-1),"g") };
_4(_18);
if(_8)_4(_17);
if(_0)_4(_16);
return _15(_7)
var input,output;
onload=function(){
if(!document.getElementById||''.replace(/^/,String))return;
input=document.getElementById("input");//内容 文本區域
var message=document.getElementById("message");//消息
var encoding=document.getElementById("ascii-encoding");//編碼方式 選擇清單 值有0、10、62、95
var fastDecode=document.getElementById("fast-decode");//快速解碼 選擇框
var specialChars=document.getElementById("special-chars");//特殊字元 選擇框
function packScript(){//執行壓縮
try{
if(input.value){
input.value=pack(input.value,encoding.value,fastDecode.checked,specialChars.checked);
//調用編碼函數 輸入代碼， 編碼方式， 是否快速解碼， 是否特殊字元
}catch(e){
reportError("error packing script",e.message)
function decodeScript(){//執行解碼
if(input.value.substring(0,27)=="eval(function(p,a,c,k,e,d)
{"){
eval("input.value=String"+input.value.slice(4));
else reportError("代碼解碼取消","您的代碼沒有用此方法壓縮！");
reportError("代碼解碼錯誤",e.message)
function enableFastDecode(){
fastDecode.disabled=Boolean(encoding.value==0);
fastDecode.parentNode.className=(encoding.value==0)?"disabled":""
function reportError(m,e){
message.innerHTML=m+(e?": "+e:"");
message.className="error"
encoding.onclick=enableFastDecode;
var buttons=document.getElementsByTagName("button");
var button,i;
for(i=0;(button=buttons[i]);i++){
var handler=eval(button.id);
button.onclick=handler;
handler.button=button
</script>
</head>
<body >
<form id="packer" action="" method="post">
<label for="input">Paste your code:</label>
<br />
<textarea id="input" name="input" rows="10" cols="79"></textarea>
<div class="r ar">
<p id="controls">
<label for="ascii-encoding">Encoding:</label>
<select id="ascii-encoding" name="ascii_encoding">
<option value="0">None</option>
<option value="10">Numeric</option>
<option value="62" selected="selected">Normal</option>
<option value="95">High ASCII</option>
</select><br />
<label for="fast-decode">Fast Decode:
<input type="checkbox" id="fast-decode" name="fast_decode" value="1" checked="checked"/></label><br />
<label for="special-chars">Special Characters:
<input type="checkbox" id="special-chars" name="special_chars" value="1"/></label>
</p>
</div>
<button type="button" id="packScript">Compress</button>
<button type="button" id="decodeScript" >Decode</button>
<p id="message"></p>
</form>
</body>
</html>
界面：
輸入js代碼：
Compress之後的顯示效果：
PS：這段代碼是我很久前在網上找的，現在可能有更新的版本或者壓縮形式，如果有更好的，歡迎交流！
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