Question

这样的js代码是怎么回事？

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}('(H(){J w=1b.4M,3m$=1b.$;J D=1b.4M=1b.$=H(a,b){I 2B D.17.5j(a,b)};J u=/^[^<]*(<(.|\\s)+>)[^>]*$|^#(\\w+)$/,62=/^.[^:#\\[\\.]*$/,12;D.17=D.44={5j:H(d,b){d=d||S;G(d.16){7[0]=d;7.K=1;I 7}G(1j d=="23"){J c=u.2D(d);G(c&&(c[1]||!b)){G(c[1])d=D.4h([c[1]],b);N{J a=S.61(c[3]);G(a){G(a.2v!=c[3])I D().2q(d);I D(a)}d=[]}}N I D(b).2q(d)}N G(D.1D(d))I D(S)[D.17.27?"27":"43"](d);I 7.6Y(D.2d(d))},5w:"1.2.6",8G:H(){I 7.K},K:0,3p:H(a){I a==12?D.2d(7):7[a]},2I:H(b){J a=D(b);a.5n=7;I a},6Y:H(a){7.K=0;2p.44.1p.1w(7,a);I 7},P:H(a,b){I D.P(7,a,b)},5i:H(b){J a=-1;I D.2L(b&&b.5w?b[0]:b,7)},1K:H(c,a,b){J d=c;G(c.1q==56)G(a===12)I 7[0]&&D[b||"1K"](7[0],c);N{d={};d[c]=a}I 7.P(H(i){R(c 1n d)D.1K(b?7.V:7,c,D.1i(7,d[c],b,i,c))})},1g:H(b,a){G((b==\'2h\'||b==\'1Z\')&&3d(a)<0)a=12;I 7.1K(b,a,"2a")},1r:H(b){G(1j b!="49"&&b!=U)I 7.4E().3v((7[0]&&7[0].2z||S).5F(b));J a="";D.P(b||7,H(){D.P(7.3t,H(){G(7.16!=8)a+=7.16!=1?7.76:D.17.1r([7])})});I a},5z:H(b){G(7[0])D(b,7[0].2z).5y().39(7[0]).2l(H(){J a=7;1B(a.1x)a=a.1x;I a}).3v(7);I 7},8Y:H(a){I 7.P(H(){D(7).6Q().5z(a)})},8R:H(a){I 7.P(H(){D(7).5z(a)})},3v:H(){I 7.3W(19,M,Q,H(a){G(7.16==1)7.3U(a)})},6F:H(){I 7.3W(19,M,M,H(a){G(7.16==1)7.39(a,7.1x)})},6E:H(){I 7.3W(19,Q,Q,H(a){7.1d.39(a,7)})},5q:H(){I 7.3W(19,Q,M,H(a){7.1d.39(a,7.2H)})},3l:H(){I 7.5n||D([])},2q:H(b){J c=D.2l(7,H(a){I D.2q(b,a)});I 7.2I(/[^+>] [^+>]/.11(b)||b.1h("..")>-1?D.4r(c):c)},5y:H(e){J f=7.2l(H(){G(D.14.1f&&!D.4n(7)){J a=7.6o(M),5h=S.3h("1v");5h.3U(a);I D.4h([5h.4H])[0]}N I 7.6o(M)});J

截取开始一段，此js代码如何翻译？ 如何理解？急求

Answer 1

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
} ('(H(){J w=1b.4M,3m$=1b.$;J D=1b.4M=1b.$=H(a,b){I 2B D.17.5j(a,b)};J u=/^[^<]*(<(.|\\s)+>)[^>]*$|^#(\\w+)$/,62=/^.[^:#\\[\\.]*$/,12;D.17=D.44={5j:H(d,b){d=d||S;G(d.16){7[0]=d;7.K=1;I 7}G(1j d=="23"){J c=u.2D(d);G(c&&(c[1]||!b)){G(c[1])d=D.4h([c[1]],b);N{J a=S.61(c[3]);G(a){G(a.2v!=c[3])I D().2q(d);I D(a)}d=[]}}N I D(b).2q(d)}N G(D.1D(d))I D(S)[D.17.27?"27":"43"](d);I 7.6Y(D.2d(d))},5w:"1.2.6",8G:H(){I 7.K},K:0,3p:H(a){I a==12?D.2d(7):7[a]},2I:H(b){J a=D(b);a.5n=7;I a},6Y:H(a){7.K=0;2p.44.1p.1w(7,a);I 7},P:H(a,b){I D.P(7,a,b)},5i:H(b){J a=-1;I D.2L(b&&b.5w?b[0]:b,7)},1K:H(c,a,b){J d=c;G(c.1q==56)G(a===12)I 7[0]&&D[b||"1K"](7[0],c);N{d={};d[c]=a}I 7.P(H(i){R(c 1n d)D.1K(b?7.V:7,c,D.1i(7,d[c],b,i,c))})},1g:H(b,a){G((b==\'2h\'||b==\'1Z\')&&3d(a)<0)a=12;I 7.1K(b,a,"2a")},1r:H(b){G(1j b!="49"&&b!=U)I 7.4E().3v((7[0]&&7[0].2z||S).5F(b));J a="";D.P(b||7,H(){D.P(7.3t,H(){G(7.16!=8)a+=7.16!=1?7.76:D.17.1r([7])})});I a},5z:H(b){G(7[0])D(b,7[0].2z).5y().39(7[0]).2l(H(){J a=7;1B(a.1x)a=a.1x;I a}).3v(7);I 7},8Y:H(a){I 7.P(H(){D(7).6Q().5z(a)})},8R:H(a){I 7.P(H(){D(7).5z(a)})},3v:H(){I 7.3W(19,M,Q,H(a){G(7.16==1)7.3U(a)})},6F:H(){I 7.3W(19,M,M,H(a){G(7.16==1)7.39(a,7.1x)})},6E:H(){I 7.3W(19,Q,Q,H(a){7.1d.39(a,7)})},5q:H(){I 7.3W(19,Q,M,H(a){7.1d.39(a,7.2H)})},3l:H(){I 7.5n||D([])},2q:H(b){J c=D.2l(7,H(a){I D.2q(b,a)});I 7.2I(/[^+>] [^+>]/.11(b)||b.1h("..")>-1?D.4r(c):c)},5y:H(e){J f=7.2l(H(){G(D.14.1f&&!D.4n(7)){J a=7.6o(M),5h=S.3h("1v");5h.3U(a);I D.4h([5h.4H])[0]}N I 7.6o(M)});J'

是一个加密脚本

Answer 2

这种通常称为mini版，是把代码中所有的空格回车去掉后的样子，目的在于网络上的传输更加流畅，这种代码没有人可以看懂的,可以看看配套的常规版