eval(
function(p, a, c, k, e, r) {
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--) r[e(c)] = k[c] || e(c);
k = [function(e) {
return r[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
}
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62,
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0, {}
)
)
这里的事情是我正在爬网一个网站，并且我需要一个由于某种规则而生成的令牌。令牌用作URL中的查询，这也是获取整个网站所必需的。 有人在论坛上发布了一个帖子，说上面的js文件已经显示了编码方式（我无法联系作者），但我无法阅读。他还建议这是MD5编码系统。
有什么我可以参考的，以便能够阅读和理解该文件？
答案 0 :(得分：1)
您正在查看的是一个用Dean Edwards' /packer/（一种常见的Java代码简化程序）编码的脚本。
要解压缩代码，请将eval替换为console.log，然后在Javascript解释器中运行代码。您正在查看的代码确实包含MD5的实现，以及一些（看上去很旧的）代码来实现AJAX请求，并在请求中包含MD5哈希。