经验大分享：python爬虫

前言

分析

这次也是一个国外的代理网站，打开查看：

是的，它也是对端口做了加密，这里的rf034其实就是实际的端口，但是并没有直接显示出来，而是通过一段js实现的

那么这段js在哪呢？直接全文检索：

点开这个c8ae6的js，点击格式化后查看：

源码

eval(function(p, a, c, k, e, d) {

e = function(c) {

return (c 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

}('$(1b).1a(19(){$(\'.17\').0(18);$(\'.1c\').0(1d);$(\'.1h\').0(1g);$(\'.1f\').0(1e);$(\'.16\').0(15);$(\'.X\').0(W);$(\'.V\').0(T);$(\'.U\').0(Y);$(\'.Z\').0(14);$(\'.13\').0(12);$(\'.10\').0(11);$(\'.1i\').0(1j);$(\'.1B\').0(1A);$(\'.1z\').0(1x);$(\'.1y\').0(1C);$(\'.1D\').0(1H);$(\'.1G\').0(1F);$(\'.1E\').0(1w);$(\'.1v\').0(1o);$(\'.1n\').0(1m);$(\'.1k\').0(1l);$(\'.1p\').0(1q);$(\'.1u\').0(1t);$(\'.1s\').0(1r);$(\'.S\').0(K);$(\'.j\').0(i);$(\'.h\').0(f);$(\'.g\').0(k);$(\'.l\').0(p);$(\'.o\').0(n);$(\'.m\').0(e);$(\'.c\').0(5);$(\'.4\').0(3);$(\'.1\').0(2);$(\'.6\').0(d);$(\'.7\').0(b);$(\'.a\').0(8);$(\'.9\').0(q);$(\'.R\').0(r);$(\'.J\').0(I);$(\'.G\').0(H);$(\'.L\').0(M);$(\'.Q\').0(P);$(\'.O\').0(N);$(\'.F\').0(E);$(\'.w\').0(v);$(\'.u\').0(s);$(\'.t\').0(x);$(\'.y\').0(D);$(\'.C\').0(B);$(\'.z\').0(A);$(\'.1I\').0(3r);$(\'.1J\').0(2T);$(\'.2S\').0(2Q);$(\'.2R\').0(2V);$(\'.2W\').0(30);$(\'.2Z\').0(2Y);$(\'.2X\').0(2P);$(\'.2O\').0(2G);$(\'.2F\').0(2E);$(\'.2C\').0(2D);$(\'.2H\').0(2I);$(\'.2N\').0(2M);$(\'.2L\').0(2J);$(\'.2K\').0(31);$(\'.32\').0(3k);$(\'.3j\').0(3i);$(\'.3g\').0(3h);$(\'.3l\').0(3m);$(\'.3q\').0(3p);$(\'.3o\').0(3n);$(\'.3f\').0(3e);$(\'.37\').0(36);$(\'.35\').0(33);$(\'.34\').0(38);$(\'.39\').0(3d);$(\'.3c\').0(3b);$(\'.3a\').0(2B);$(\'.2A\').0(22);$(\'.21\').0(20);$(\'.1Y\').0(1Z);$(\'.23\').0(24);$(\'.28\').0(27);$(\'.26\').0(25);$(\'.1X\').0(1W);$(\'.1O\').0(1N);$(\'.1M\').0(1K);$(\'.1L\').0(1P);$(\'.1Q\').0(1V);$(\'.1U\').0(1T);$(\'.1R\').0(1S);$(\'.29\').0(2a);$(\'.2t\').0(2s);$(\'.2r\').0(2p);$(\'.2q\').0(2u);$(\'.2v\').0(2z);$(\'.2y\').0(2x);$(\'.2w\').0(2o);$(\'.2n\').0(2f);$(\'.2e\').0(2d);$(\'.2b\').0(2c);$(\'.2g\').0(2h);$(\'.2m\').0(2l);$(\'.2k\').0(2i);$(\'.2j\').0(2U)});', 62, 214, 'html|r1cad|53959|34273|r382f|36681|r16ec|r5f55|44612|r0799|r91df|34560|r4732|60530|59144|8004|r6d76|rfbab|3256|r5288|9991|r27a0|r5349|39371|r1907|34403|38525|3888|8380|rb67c|r82c8|48678|ra4dc|8197|rc1ac|r4403|31475|49602|r58e6|83|2222|r0484|rc90e|1081|1080|r961e|46385|r6572|8118|42119|r1dc7|48146|r11c6|r6c92|rd155|80|rbf49|r1dfd|999|r3872|8081|rf034|r6689|60604|37699|r25ee|3128|8090|r371e|r91de|8080|function|ready|document|r0e8d|38009|55443|rbfa3|8088|rd420|ra882|32231|rba5d|63141|45521|rfc3a|41878|rc6c6|51680|443|r9a25|31932|r1b07|r11b4|60731|808|r281f|r2329|53281|r99d5|59152|rf640|r7ec7|9999|re54b|65205|rf04b|r3629|32439|rab5c|rfec2|32161|rc143|55693|r2e4b|r34a8|33326|53438|r0938|8889|58893|r9bcd|r7f6f|50330|45729|r96d2|45730|r87fc|35953|45381|r183f|37444|r5b53|rbe71|61657|r148b|1993|32916|r0e0a|41621|rd26e|40282|42967|r79d3|re62d|8085|r8b97|rf3b1|54256|33855|r6cbb|r85ac|56315|r63b2|31280|r6b29|r8f7e|45295|r8bce|48241|rc9e2|48687|r411f|3150|60792|r1274|47385|r62f2|56644|45282|rf56a|r6953|47615|r8166|rae36|30716|39589|r0e11|r9760|8686|54675|58888|r22cd|rd8eb|45944|ra76c|47247|42928|r75b5|47744|rd2c9|r1f65|47548|rcb82|30640|rddf2|ra051|48995|ra854|48625|61954|rac92|r1c73|4645|52271|r69ad|54018|rccd3|43631|23500|r34e5|9001|rb9b6|61743'.split('|'), 0, {}))

这段代码，说实话乍一看确实费劲，我搜了下有关function(p, a, c, k, e, d) 加密的：

还挺多的，但是我点进去一个一个看，大部分的文章感觉内容都很类似，然后，都在说可以把最后的return改成：

其实这个eval(function(p,a,c,k,e,d){}))中自带解码函数e(). while(c--){if(k【c】){p=p.replace(new RegExp('\b'+e(c)+'\b','g'),k【c】)}}return p while循环产生的每个p就是解码后的函数代码,我们删掉源码中的return p,不用将结果返回, 而是直接输出在一个文本区域中,如document.getElementById(”textareaID”).innerText=p

我尝试着改了，保存成一个html文件

用浏览器打开，这些也确实就是实际的端口

用刚才的搜rf034也确实是源码上的3128端口对上：

还有种方法，用浏览器自带的解混淆工具：

然后把我下面圈住的地方，勾选上，再刷新页面即可

以上的方法是针对某些在代码本身有加密混淆的代码，比如这个博客里的：点我，这里面的案例也是用的这个函数来加密代码，用以上方法确实能把实际的js转义出来。

但是，是的，讨厌的“但是”出现了

我们这里的，其实代码本身并没有加密，为什么这么说，我新开一个标签页，在console里粘贴这段代码：

回车，卧槽，报错了，没事，它提示的意思是浏览器不能执行eval的，因为方式一些xss攻击之类

把eval删了再看：

回车，结果也直接就出现了，所以，代码本身是没有做加密的

这里的加密是对数据的加密，因为我发现，我刷新一次页面，只要这个代理网站上的代理有更新，它后面传的参数就会做相应的改变：这一堆参数

$(1b).1a(19(){$(\'.17\').0(18);$(\'.1c\').0(1d);$(\'.1h\').0(1g);$(\'.1f\').0(1e);$(\'.16\').0(15);$(\'.X\').0(W);$(\'.V\').0(T);$(\'.U\').0(Y);$(\'.Z\').0(14);$(\'.13\').0(12);$(\'.10\').0(11);$(\'.1i\').0(1j);$(\'.1B\').0(1A);$(\'.1z\').0(1x);$(\'.1y\').0(1C);$(\'.1D\').0(1H);$(\'.1G\').0(1F);$(\'.1E\').0(1w);$(\'.1v\').0(1o);$(\'.1n\').0(1m);$(\'.1k\').0(1l);$(\'.1p\').0(1q);$(\'.1u\').0(1t);$(\'.1s\').0(1r);$(\'.S\').0(K);$(\'.j\').0(i);$(\'.h\').0(f);$(\'.g\').0(k);$(\'.l\').0(p);$(\'.o\').0(n);$(\'.m\').0(e);$(\'.c\').0(5);$(\'.4\').0(3);$(\'.1\').0(2);$(\'.6\').0(d);$(\'.7\').0(b);$(\'.a\').0(8);$(\'.9\').0(q);$(\'.R\').0(r);$(\'.J\').0(I);$(\'.G\').0(H);$(\'.L\').0(M);$(\'.Q\').0(P);$(\'.O\').0(N);$(\'.F\').0(E);$(\'.w\').0(v);$(\'.u\').0(s);$(\'.t\').0(x);$(\'.y\').0(D);$(\'.C\').0(B);$(\'.z\').0(A);$(\'.1I\').0(3r);$(\'.1J\').0(2T);$(\'.2S\').0(2Q);$(\'.2R\').0(2V);$(\'.2W\').0(30);$(\'.2Z\').0(2Y);$(\'.2X\').0(2P);$(\'.2O\').0(2G);$(\'.2F\').0(2E);$(\'.2C\').0(2D);$(\'.2H\').0(2I);$(\'.2N\').0(2M);$(\'.2L\').0(2J);$(\'.2K\').0(31);$(\'.32\').0(3k);$(\'.3j\').0(3i);$(\'.3g\').0(3h);$(\'.3l\').0(3m);$(\'.3q\').0(3p);$(\'.3o\').0(3n);$(\'.3f\').0(3e);$(\'.37\').0(36);$(\'.35\').0(33);$(\'.34\').0(38);$(\'.39\').0(3d);$(\'.3c\').0(3b);$(\'.3a\').0(2B);$(\'.2A\').0(22);$(\'.21\').0(20);$(\'.1Y\').0(1Z);$(\'.23\').0(24);$(\'.28\').0(27);$(\'.26\').0(25);$(\'.1X\').0(1W);$(\'.1O\').0(1N);$(\'.1M\').0(1K);$(\'.1L\').0(1P);$(\'.1Q\').0(1V);$(\'.1U\').0(1T);$(\'.1R\').0(1S);$(\'.29\').0(2a);$(\'.2t\').0(2s);$(\'.2r\').0(2p);$(\'.2q\').0(2u);$(\'.2v\').0(2z);$(\'.2y\').0(2x);$(\'.2w\').0(2o);$(\'.2n\').0(2f);$(\'.2e\').0(2d);$(\'.2b\').0(2c);$(\'.2g\').0(2h);$(\'.2m\').0(2l);$(\'.2k\').0(2i);$(\'.2j\').0(2U)});', 62, 214, 'html|r1cad|53959|34273|r382f|36681|r16ec|r5f55|44612|r0799|r91df|34560|r4732|60530|59144|8004|r6d76|rfbab|3256|r5288|9991|r27a0|r5349|39371|r1907|34403|38525|3888|8380|rb67c|r82c8|48678|ra4dc|8197|rc1ac|r4403|31475|49602|r58e6|83|2222|r0484|rc90e|1081|1080|r961e|46385|r6572|8118|42119|r1dc7|48146|r11c6|r6c92|rd155|80|rbf49|r1dfd|999|r3872|8081|rf034|r6689|60604|37699|r25ee|3128|8090|r371e|r91de|8080|function|ready|document|r0e8d|38009|55443|rbfa3|8088|rd420|ra882|32231|rba5d|63141|45521|rfc3a|41878|rc6c6|51680|443|r9a25|31932|r1b07|r11b4|60731|808|r281f|r2329|53281|r99d5|59152|rf640|r7ec7|9999|re54b|65205|rf04b|r3629|32439|rab5c|rfec2|32161|rc143|55693|r2e4b|r34a8|33326|53438|r0938|8889|58893|r9bcd|r7f6f|50330|45729|r96d2|45730|r87fc|35953|45381|r183f|37444|r5b53|rbe71|61657|r148b|1993|32916|r0e0a|41621|rd26e|40282|42967|r79d3|re62d|8085|r8b97|rf3b1|54256|33855|r6cbb|r85ac|56315|r63b2|31280|r6b29|r8f7e|45295|r8bce|48241|rc9e2|48687|r411f|3150|60792|r1274|47385|r62f2|56644|45282|rf56a|r6953|47615|r8166|rae36|30716|39589|r0e11|r9760|8686|54675|58888|r22cd|rd8eb|45944|ra76c|47247|42928|r75b5|47744|rd2//代码效果参考：http://www.zidongmutanji.com/zsjx/372141.html

所以，此时，我们还是得从代码逻辑上下手，一点点的分析：

先看这个，这个e

它实际在干嘛呢，其实这个函数才是核心的加密，

a是啥，再回看下函数function(p, a, c, k, e, d)，然后我们传的参数：

'$(1b).1a(19(){$(\'.17\').0(18);$(\'.1c\').0(1d);$(\'.1h\').0(1g);$(\'.1f\').0(1e);$(\'.16\').0(15);$(\'.X\').0(W);$(\'.V\').0(T);$(\'.U\').0(Y);$(\'.Z\').0(14);$(\'.13\').0(12);$(\'.10\').0(11);$(\'.1i\').0(1j);$(\'.1B\').0(1A);$(\'.1z\').0(1x);$(\'.1y\').0(1C);$(\'.1D\').0(1H);$(\'.1G\').0(1F);$(\'.1E\').0(1w);$(\'.1v\').0(1o);$(\'.1n\').0(1m);$(\'.1k\').0(1l);$(\'.1p\').0(1q);$(\'.1u\').0(1t);$(\'.1s\').0(1r);$(\'.S\').0(K);$(\'.j\').0(i);$(\'.h\').0(f);$(\'.g\').0(k);$(\'.l\').0(p);$(\'.o\').0(n);$(\'.m\').0(e);$(\'.c\').0(5);$(\'.4\').0(3);$(\'.1\').0(2);$(\'.6\').0(d);$(\'.7\').0(b);$(\'.a\').0(8);$(\'.9\').0(q);$(\'.R\').0(r);$(\'.J\').0(I);$(\'.G\').0(H);$(\'.L\').0(M);$(\'.Q\').0(P);$(\'.O\').0(N);$(\'.F\').0(E);$(\'.w\').0(v);$(\'.u\').0(s);$(\'.t\').0(x);$(\'.y\').0(D);$(\'.C\').0(B);$(\'.z\').0(A);$(\'.1I\').0(3r);$(\'.1J\').0(2T);$(\'.2S\').0(2Q);$(\'.2R\').0(2V);$(\'.2W\').0(30);$(\'.2Z\').0(2Y);$(\'.2X\').0(2P);$(\'.2O\').0(2G);$(\'.2F\').0(2E);$(\'.2C\').0(2D);$(\'.2H\').0(2I);$(\'.2N\').0(2M);$(\'.2L\').0(2J);$(\'.2K\').0(31);$(\'.32\').0(3k);$(\'.3j\').0(3i);$(\'.3g\').0(3h);$(\'.3l\').0(3m);$(\'.3q\').0(3p);$(\'.3o\').0(3n);$(\'.3f\').0(3e);$(\'.37\').0(36);$(\'.35\').0(33);$(\'.34\').0(38);$(\'.39\').0(3d);$(\'.3c\').0(3b);$(\'.3a\').0(2B);$(\'.2A\').0(22);$(\'.21\').0(20);$(\'.1Y\').0(1Z);$(\'.23\').0(24);$(\'.28\').0(27);$(\'.26\').0(25);$(\'.1X\').0(1W);$(\'.1O\').0(1N);$(\'.1M\').0(1K);$(\'.1L\').0(1P);$(\'.1Q\').0(1V);$(\'.1U\').0(1T);$(\'.1R\').0(1S);$(\'.29\').0(2a);$(\'.2t\').0(2s);$(\'.2r\').0(2p);$(\'.2q\').0(2u);$(\'.2v\').0(2z);$(\'.2y\').0(2x);$(\'.2w\').0(2o);$(\'.2n\').0(2f);$(\'.2e\').0(2d);$(\'.2b\').0(2c);$(\'.2g\').0(2h);$(\'.2m\').0(2l);$(\'.2k\').0(2i);$(\'.2j\').0(2U)});',

62,

214,

'html|r1cad|53959|34273|r382f|36681|r16ec|r5f55|44612|r0799|r91df|34560|r4732|60530|59144|8004|r6d76|rfbab|3256|r5288|9991|r27a0|r5349|39371|r1907|34403|38525|3888|8380|rb67c|r82c8|48678|ra4dc|8197|rc1ac|r4403|31475|49602|r58e6|83|2222|r0484|rc90e|1081|1080|r961e|46385|r6572|8118|42119|r1dc7|48146|r11c6|r6c92|rd155|80|rbf49|r1dfd|999|r3872|8081|rf034|r6689|60604|37699|r25ee|3128|8090|r371e|r91de|8080|function|ready|document|r0e8d|38009|55443|rbfa3|8088|rd420|ra882|32231|rba5d|63141|45521|rfc3a|41878|rc6c6|51680|443|r9a25|31932|r1b07|r11b4|60731|808|r281f|r2329|53281|r99d5|59152|rf640|r7ec7|9999|re54b|65205|rf04b|r3629|32439|rab5c|rfec2|32161|rc143|55693|r2e4b|r34a8|33326|53438|r0938|8889|58893|r9bcd|r7f6f|50330|45729|r96d2|45730|r87fc|35953|45381|r183f|37444|r5b53|rbe71|61657|r148b|1993|32916|r0e0a|41621|rd26e|40282|42967|r79d3|re62d|8085|r8b97|rf3b1|54256|33855|r6cbb|r85ac|56315|r63b2|31280|r6b29|r8f7e|45295|r8bce|48241|rc9e2|48687|r411f|3150|60792|r1274|47385|r62f2|56644|45282|rf56a|r6953|47615|r8166|rae36|30716|39589|r0e11|r9760|8686|54675|58888|r22cd|rd8eb|45944|ra76c|47247|42928|r75b5|47744|rd2c9|r1f65|47548|rcb82|30640|rddf2|ra051|48995|ra854|48625|61954|rac92|r1c73|4645|52271|r69ad|54018|rccd3|43631|23500|r34e5|9001|rb9b6|61743'.split('|'),

0,

{}

那么，p就是：

'$(1b).1a(19(){$(\'.17\').0(18);$(\'.1c\').0(1d);$(\'.1h\').0(1g);$(\'.1f\').0(1e);$(\'.16\').0(15);$(\'.X\').0(W);$(\'.V\').0(T);$(\'.U\').0(Y);$(\'.Z\').0(14);$(\'.13\').0(12);$(\'.10\').0(11);$(\'.1i\').0(1j);$(\'.1B\').0(1A);$(\'.1z\').0(1x);$(\'.1y\').0(1C);$(\'.1D\').0(1H);$(\'.1G\').0(1F);$(\'.1E\').0(1w);$(\'.1v\').0(1o);$(\'.1n\').0(1m);$(\'.1k\').0(1l);$(\'.1p\').0(1q);$(\'.1u\').0(1t);$(\'.1s\').0(1r);$(\'.S\').0(K);$(\'.j\').0(i);$(\'.h\').0(f);$(\'.g\').0(k);$(\'.l\').0(p);$(\'.o\').0(n);$(\'.m\').0(e);$(\'.c\').0(5);$(\'.4\').0(3);$(\'.1\').0(2);$(\'.6\').0(d);$(\'.7\').0(b);$(\'.a\').0(8);$(\'.9\').0(q);$(\'.R\').0(r);$(\'.J\').0(I);$(\'.G\').0(H);$(\'.L\').0(M);$(\'.Q\').0(P);$(\'.O\').0(N);$(\'.F\').0(E);$(\'.w\').0(v);$(\'.u\').0(s);$(\'.t\').0(x);$(\'.y\').0(D);$(\'.C\').0(B);$(\'.z\').0(A);$(\'.1I\').0(3r);$(\'.1J\').0(2T);$(\'.2S\').0(2Q);$(\'.2R\').0(2V);$(\'.2W\').0(30);$(\'.2Z\').0(2Y);$(\'.2X\').0(2P);$(\'.2O\').0(2G);$(\'.2F\').0(2E);$(\'.2C\').0(2D);$(\'.2H\').0(2I);$(\'.2N\').0(2M);$(\'.2L\').0(2J);$(\'.2K\').0(31);$(\'.32\').0(3k);$(\'.3j\').0(3i);$(\'.3g\').0(3h);$(\'.3l\').0(3m);$(\'.3q\').0(3p);$(\'.3o\').0(3n);$(\'.3f\').0(3e);$(\'.37\').0(36);$(\'.35\').0(33);$(\'.34\').0(38);$(\'.39\').0(3d);$(\'.3c\').0(3b);$(\'.3a\').0(2B);$(\'.2A\').0(22);$(\'.21\').0(20);$(\'.1Y\').0(1Z);$(\'.23\').0(24);$(\'.28\').0(27);$(\'.26\').0(25);$(\'.1X\').0(1W);$(\'.1O\').0(1N);$(\'.1M\').0(1K);$(\'.1L\').0(1P);$(\'.1Q\').0(1V);$(\'.1U\').0(1T);$(\'.1R\').0(1S);$(\'.29\').0(2a);$(\'.2t\').0(2s);$(\'.2r\').0(2p);$(\'.2q\').0(2u);$(\'.2v\').0(2z);$(\'.2y\').0(2x);$(\'.2w\').0(2o);$(\'.2n\').0(2f);$(\'.2e\').0(2d);$(\'.2b\').0(2c);$(\'.2g\').0(2h);$(\'.2m\').0(2l);$(\'.2k\').0(2i);$(\'.2j\').0(2U)});'

a就是62

c就是214，

k就是：

'html|r1cad|53959|34273|r382f|36681|r16ec|r5f55|44612|r0799|r91df|34560|r4732|60530|59144|8004|r6d76|rfbab|3256|r5288|9991|r27a0|r5349|39371|r1907|34403|38525|3888|8380|rb67c|r82c8|48678|ra4dc|8197|rc1ac|r4403|31475|49602|r58e6|83|2222|r0484|rc90e|1081|1080|r961e|46385|r6572|8118|42119|r1dc7|48146|r11c6|r6c92|rd155|80|rbf49|r1dfd|999|r3872|8081|rf034|r6689|60604|37699|r25ee|3128|8090|r371e|r91de|8080|function|ready|document|r0e8d|38009|55443|rbfa3|8088|rd420|ra882|32231|rba5d|63141|45521|rfc3a|41878|rc6c6|51680|443|r9a25|31932|r1b07|r11b4|60731|808|r281f|r2329|53281|r99d5|59152|rf640|r7ec7|9999|re54b|65205|rf04b|r3629|32439|rab5c|rfec2|32161|rc143|55693|r2e4b|r34a8|33326|53438|r0938|8889|58893|r9bcd|r7f6f|50330|45729|r96d2|45730|r87fc|35953|45381|r183f|37444|r5b53|rbe71|61657|r148b|1993|32916|r0e0a|41621|rd26e|40282|42967|r79d3|re62d|8085|r8b97|rf3b1|54256|33855|r6cbb|r85ac|56315|r63b2|31280|r6b29|r8f7e|45295|r8bce|48241|rc9e2|48687|r411f|3150|60792|r1274|47385|r62f2|56644|45282|rf56a|r6953|47615|r8166|rae36|30716|39589|r0e11|r9760|8686|54675|58888|r22cd|rd8eb|45944|ra76c|47247|42928|r75b5|47744|rd2c9|r1f65|47548|rcb82|30640|rddf2|ra051|48995|ra854|48625|61954|rac92|r1c73|4645|52271|r69ad|54018|rccd3|43631|23500|r34e5|9001|rb9b6|61743'.split('|')

e就是0，

d就是{}

补充下，我刚才说刷新下页面，它代理有更新传的参数就会变，指的就是传的这几个值

好继续，把没有的参数补齐：

e还是没定义，仔细看代码，它作了递归调用，那就单独定义下e吧：

120的结果是1W，那么我觉得，它就是对这些数字作了字段映射

继续看下面的代码：

其实，这个if会永远成立的，所以里面的代码一定会执行的，不信看：

后面的while就把多次生成值然后给传入的d，也就是{}，最后的d会生成什么暂时放一放，后面会说，再看下面一段代码：

不用多说吧，就算看不懂，猜也能猜到，最后肯定是上面做的字段映射出来的值替换会去，用正则表达式匹配

好，下面我们打断点看下：

我点完刷新，返现js文件名都变了，白打断点了，那就只能拼手速了，打上断点立即测，等它网站没更新时及时断点上：

这次断上了，来一个一个看：

同时右边有个scope，可以看到此时此刻出现的值的变化：