代码：
<!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">
<link href="toolsite.css" rel="stylesheet" type="text/css">
<title></title>
</head>
<body>
<!--warp-->
<div class="wrap">
<!--main-->
<div class="main">
<script src="base.js" type="text/javascript"></script>
<script type="text/javascript">
function pack_js(base64) {
var input = document.getElementById('content').value;
var packer = new Packer;
if (base64) {
var output = packer.pack(input, 1, 0);
} else {
var output = packer.pack(input, 0, 0);
}
document.getElementById('content').value = output;
}
</script>
<form name="aspnetForm" method="post" action="JsFormat.aspx" id="aspnetForm">
<div style="color: rgb(0, 106, 173); font-size: 16px; font-weight: bold;" align="center">JavaScript/HTML格式化</div>
<textarea id="content" name="content" style="width: 850px; border: 1px solid rgb(197, 226, 242); height: 300px; overflow: visible;" cols="20" rows="20">
function htmlspecialchars(string, quote_style,
charset, double_encode) {
// Convert special characters to HTML entities
//
// version: 1004.2314
// discuss at: http://phpjs.org/functions/htmlspecialchars // +
original by: Mirek Slugen
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + bugfixed by: Nathan
// + bugfixed by: Arno
// + revised by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + bugfixed by: Brett Zamir (http://brett-zamir.me)
// + input by: Ratheous
// + input by: Mailfaker (http://www.weedem.fr/)
// + reimplemented by: Brett Zamir (http://brett-zamir.me)
// + input by: felix // + bugfixed by: Brett Zamir
(http://brett-zamir.me)
// % note 1: charset argument not supported
// * example 1: htmlspecialchars("<a
href='test'>Test</a>", 'ENT_QUOTES');
// * returns 1: '<a
href='test'>Test</a>'
// * example 2: htmlspecialchars("ab\"c'd", ['ENT_NOQUOTES',
'ENT_QUOTES']); // * returns 2: 'ab"c'd'
// * example 3: htmlspecialchars("my "&entity;" is still here",
null, null, false);
// * returns 3: 'my "&entity;" is still here'
var optTemp = 0,
i = 0,
noquotes = false;
if (typeof quote_style === 'undefined' || quote_style === null) {
quote_style = 2;
}
string = string.toString();
if (double_encode !== false) { // Put this first to avoid
double-encoding
string = string.replace(/&/g, '&');
}
string = string.replace(/</g, '<').replace(/>/g,
'>');
var OPTS = {
'ENT_NOQUOTES': 0,
'ENT_HTML_QUOTE_SINGLE': 1,
'ENT_HTML_QUOTE_DOUBLE': 2,
'ENT_COMPAT': 2,
'ENT_QUOTES': 3,
'ENT_IGNORE': 4
};
if (quote_style === 0) {
noquotes = true;
}
if (typeof quote_style !== 'number') { // Allow for a single string or
an array of string flags quote_style = [].concat(quote_style);
for (i = 0; i < quote_style.length; i++) {
// Resolve string input to bitwise e.g. 'PATHINFO_EXTENSION' becomes 4
if (OPTS[quote_style[i]] === 0) {
noquotes = true;
} else if (OPTS[quote_style[i]]) {
optTemp = optTemp | OPTS[quote_style[i]];
}
}
quote_style = optTemp;
}
if (quote_style & OPTS.ENT_HTML_QUOTE_SINGLE) {
string = string.replace(/'/g, ''');
}
if (!noquotes) {
string = string.replace(/"/g, '"');
}
return string;
}
</textarea>
<select name="tabsize" id="tabsize">
<option selected="selected" value="1">
制表符缩进
</option>
<option value="2">
2个空格缩进
</option>
<option value="4">
4个空格缩进
</option>
<option value="8">
8个空格缩进
</option>
</select>
<input class="but" value="格式化" οnclick="return do_js_beautify()" id="beautify" type="button">
<input class="but" value="普通压缩" οnclick="pack_js(0)" type="button">
<input class="but" value="加密压缩" οnclick="pack_js(1)" type="button">
</form>
</div>
</div>
</body>
</html>
另一种：
<script>
a=62;
function encode() {
var code = document.getElementById('code').value;
code = code.replace(/[\r\n]+/g, '');
code = code.replace(/'/g, "\\'");
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 οnclick=encode() value=编码>
<input type=button οnclick=run() value=执行>
<input type=button οnclick=decode() value=解码>
标签：style,code,加密,string,quote,JavaScript,解密,ENT,var From： https://blog.51cto.com/u_8895844/6152844