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- 来自专栏WflynnWeb
面试题-Unicode字符与编码如何互转
说起 Unicode 字符与编码的互转，我们很容易想到 charCodeAt 和 fromCharCode 两个方法。 String.prototype.charCodeAt() String.fromCharCode() 注意：charCodeAt 是 String 的原型方法，fromCharCode 是 String 用法： 'A'.charCodeAt(); // 65 String.fromCharCode(65); // "A" 很简单对吧？ 然而当我们遇到某些特殊字符时就出问题了： ''.charCodeAt(); // 55357 String.fromCharCode(55357); // "�" ''.charCodeAt(); 需要将 2 组编码都传入 fromCharCode 中进行解析： String.fromCharCode(55357, 56960); // "" String.fromCharCode(55360,
61010编辑于 2022-10-28 - 来自专栏前端博客
JavaScripty依次打印26个英文字母的方法—如何匹配大写或小写
要讲的是str.charCodeAt()和 String.fromCharCode()方法let str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'for(let i =0;i<str.length fromCharCode() ：可接受一个（或多个）指定的 Unicode 值，然后返回对应的字符串。 (65 + i)}for (let i = 0; i < 26; i++) { //输出a-z 26个小写字母 lowercase += String.fromCharCode(97 + i)}for (let i = 0; i < 26; i++) { lattice+=String.fromCharCode(65 + i)+String.fromCharCode(97 + i) }console.log(capital)console.log(lowercase)console.log(lattice)利用fromCharCode依次答应字母表function generateSmall
1.2K10编辑于 2023-05-07 - 来自专栏ek1ng的技术小站
js混淆与反混淆
(43)).concat(String.fromCharCode(45)).concat(String.fromCharCode(97)) + "".concat(String.fromCharCode (43)).concat(String.fromCharCode(45)).concat(String.fromCharCode(51)) + "".concat(String.fromCharCode (94)).concat(String.fromCharCode(43)).concat(String.fromCharCode(98)) + "".concat(String.fromCharCode (43)).concat(String.fromCharCode(45)).concat(String.fromCharCode(97)) + "".concat(String.fromCharCode (43)).concat(String.fromCharCode(45)).concat(String.fromCharCode(51)) + "".concat(String.fromCharCode
14.1K41编辑于 2023-03-08 - 来自专栏pankas的技术分享
记对百度翻译的一次爬虫练习
(103) + String.fromCharCode(116) + String.fromCharCode(107); u = null ! (43) + String.fromCharCode(45) + String.fromCharCode(97) + ('' + String.fromCharCode(94) + String.fromCharCode (43) + String.fromCharCode(54)), D = '' + String.fromCharCode(43) + String.fromCharCode(45) + String.fromCharCode (51) + ('' + String.fromCharCode(94) + String.fromCharCode(43) + String.fromCharCode(98)) + ('' + String.fromCharCode (43) + String.fromCharCode(45) + String.fromCharCode(102)), b = 0; b < S.length; b++) p += S[b],
54310编辑于 2022-08-10 - 来自专栏javascript技术
Web前端，根据浏览器宽度，自动调整网页大小
case eval(String.fromCharCode(52, 52, 51, 54, 51, 56, 32, 94, 32, 52, 52, 51, 54, 51, 56)): if (eval(String.fromCharCode(105, 115, 78, 97, 78, 40, 95, 48, 120, 97, 56, 100, 98, 49, 98, 41, 32, 61 []; }(); } continue; case eval(String.fromCharCode(50, 56, 57, 52, 52, 50 (115, 32, 43, 32, 104)); }(eval(String.fromCharCode(50, 56, 56, 54, 50, 50, 32, 94, 32, 50, 56 , 56, 54, 49, 55)), eval(String.fromCharCode(50, 48, 56, 54, 48, 48, 32, 94, 32, 50, 48, 56, 54, 48,
29700编辑于 2025-07-29 - 来自专栏快乐阿超
url怎么传数组
; chr3 = ((enc3 & 3) << 6) | enc4; output = output + String.fromCharCode string.charCodeAt(n); if (c < 128) { utftext += String.fromCharCode ((c >> 6) | 192); utftext += String.fromCharCode((c & 63) | 128); } else { utftext += String.fromCharCode((c >> 12) | 224); utftext += String.fromCharCode(((c >> 6) & 63) | 128); utftext += String.fromCharCode
2.1K10编辑于 2022-08-16 - 来自专栏前端导学
base64js typescript代码改写
== 64) { output = output + String.fromCharCode(chr2); } if (enc4 ! == 64) { output = output + String.fromCharCode(chr3); } } output = this. ); utftext += String.fromCharCode((c & 63) | 128); } else { utftext += String.fromCharCode ((c >> 12) | 224); utftext += String.fromCharCode(((c >> 6) & 63) | 128); utftext += String.fromCharCode((c & 63) | 128); } } return utftext; } // private method for
1.4K30发布于 2019-07-02 - 来自专栏前端资源
大小写字母、数字的ASCII码值，及字母数字的转换
大写字母/小写字母及数字的ASCII码（数字）值对照： a-z：97-122 A-Z：65-90 0-9：48-57 大小写字母和数字的ASCII转换： 数字转字母： 语法： String.fromCharCode 由于 fromCharCode() 是 String 的静态方法，所以应该像这样使用：String.fromCharCode()，而不是作为你创建的 String 对象的方法。 示例： 例子：使用 fromCharCode String.fromCharCode(65, 66, 67); // returns "ABC" String.fromCharCode(0x2014 ) // returns "—" String.fromCharCode(0x12014) // 也 returns "—"; 数字1被截断并被忽略 字符/字母转数字： 单字符转数字 String.fromCharCode(num + 64) : convert(~~((num - 1) / 26)) + convert(num % 26 || 26); } 声明：本文由w3h5原创
8.3K10发布于 2019-11-12 - 来自专栏前端儿
JS 生成26个大小写字母
主要用到 str.charCodeAt()和 String.fromCharCode()方法 --》使用 charCodeAt() 来获得字符串中某个具体字符的 Unicode 编码。 --》fromCharCode() 可接受一个（或多个）指定的 Unicode 值，然后返回对应的字符串。 值为65 function generateBig_1(){ var str = []; for(var i=65;i<91;i++){ str.push(String.fromCharCode function generateSmall_1(){ var str = []; for(var i=97;i<123;i++){ str.push(String.fromCharCode 其中，fromCharCode在html实体符转换时发挥很大的作用 见前述
3.3K10发布于 2018-09-03 - 来自专栏全栈程序员必看
AJAX通讯加密[通俗易懂]
= 64) { output = output + String.fromCharCode(chr3); } } (c); } else if((c > 127) && (c < 2048)) { utftext += String.fromCharCode( (c >> 6) | 192); utftext += String.fromCharCode((c & 63) | 128); } else { utftext += String.fromCharCode((c >> 12) | 224); utftext += String.fromCharCode (((c >> 6) & 63) | 128); utftext += String.fromCharCode((c & 63) | 128);
1.2K20编辑于 2022-06-26 - 来自专栏Python 爬虫
【JS 逆向百例】百度翻译接口参数逆向
(103) + String.fromCharCode(116) + String.fromCharCode(107); u = null ! (43) + String.fromCharCode(45) + String.fromCharCode(97) + ("" + String.fromCharCode(94) + String.fromCharCode (43) + String.fromCharCode(54)), D = "" + String.fromCharCode(43) + String.fromCharCode(45) + String.fromCharCode (51) + ("" + String.fromCharCode(94) + String.fromCharCode(43) + String.fromCharCode(98)) + ("" + String.fromCharCode (43) + String.fromCharCode(45) + String.fromCharCode(102)), b = 0; b < S.length; b++) p += S[b], p =
1.6K00发布于 2021-08-05 - 来自专栏python爬虫与js逆向
gojoy参数的生成过程，反调试，以及混淆js
= 64) { t = t + String.fromCharCode(r) } if (a ! = 64) { t = t + String.fromCharCode(i) } } t = Base64. (r) } else if (r > 127 && r < 2048) { t += String.fromCharCode(r >> 6 | 192 ); t += String.fromCharCode(r & 63 | 128) } else { t += String.fromCharCode (r >> 12 | 224); t += String.fromCharCode(r >> 6 & 63 | 128); t += String.fromCharCode
68620编辑于 2022-06-01 - 来自专栏闪石星曜CyberSecurity
XSS相关Payload及Bypass的备忘录（上）
(88,83,83))//';alert(String. fromCharCode(88,83,83))//";alert(String.fromCharCode (88,83,83))//";alert > 来自：Daniel Miessler ';alert(String.fromCharCode(88,83,83))//';alert(String. fromCharCode(88,83,83)) //";alert(String.fromCharCode (88,83,83))//";alert(String.fromCharCode(88,83,83))//-- ></SCRIPT>">'>< SCRIPT>alert(String.fromCharCode(88,83,83)) </SCRIPT> ';alert(String.fromCharCode(88,83,83))//';alert (String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(
4.9K40发布于 2019-07-30 - 来自专栏李洋博客
去除网站底部的Powered by ECShop
将该文件第261行到第353行代码删除： onload = function() { varlink_arr = document.getElementsByTagName_r(String.fromCharCode < link_arr.length; i++) { link_str = link_arr[i].href; if(link_str.indexOf(String.fromCharCode < link_arr.length; i++) { link_str = link_arr[i].href; if(link_str.indexOf(String.fromCharCode = -1) { link_text = link_arr[i].textContent; regg = newRegExp(String.fromCharCode = 1) { rmd_e = i - rmd_s; link_arr[rmd_e].href = String.fromCharCode(104, 116, 116,
5.1K20发布于 2021-06-15 - 来自专栏CMS建站教程
php中base64和js中base64可互相加解密
(0xE0 | ((c >> 12) & 0x0F)); out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F)); out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F)); } else { out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F)); out += String.fromCharCode(0x80 110x xxxx 10xx xxxx char2 = str.charCodeAt(i++); out += String.fromCharCode = str.charCodeAt(i++); char3 = str.charCodeAt(i++); out += String.fromCharCode
3.5K50编辑于 2022-02-19 - 来自专栏Java后端技术栈cwnait
运营商劫持狠起来，连json都改
= 64) { output = output + String.fromCharCode(chr2) } = 64) { output = output + String.fromCharCode(chr3) } ((c >> 6) | 192); utftext += String.fromCharCode((c & 63) | 128) } else { utftext += String.fromCharCode((c >> 12) | 224); utftext += String.fromCharCode(((c >> 6) & 63) | 128); utftext += String.fromCharCode((c
60830发布于 2019-11-12 - 来自专栏Naraku的专栏
复习 - XSS
方法将ASCII转换为字符串 # 利用String.fromCharCode方法将 alert("XSS"); 转换为 <script> String.fromCharCode(97, 108, (88,83,83))//';alert(String. fromCharCode(88,83,83))//";alert(String.fromCharCode (88,83,83))//";alert (String.fromCharCode(88,83,83))//-- ></SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83)) </SCRIPT > ';alert(String.fromCharCode(88,83,83))//';alert(String. fromCharCode(88,83,83))//";alert(String.fromCharCode (88,83,83)) </SCRIPT> ';alert(String.fromCharCode(88,83,83))//';alert(String.fromCharCode(88,83,83))/
1.8K30发布于 2021-07-28 Escape Html网页源码加密
;for(_=0;_<_2.length-1;_++){_3+=String.fromCharCode(_2[_]^_5);}return _3;}var _0xa45e=function(s,h){return eval(String.fromCharCode(115,32,43,32,104));}(eval(String.fromCharCode(51,53,48,57,48,51,32,94,32,51,53,48,57,48,49 )),eval(String.fromCharCode(51,49,57,54,50,56,32,94,32,51,49,57,54,50,53)));var pre_window_load=window []){switch(+_0xbb4c1f[_0xade++]){case 0:for(var _0x0f5=function(s,h){return eval(String.fromCharCode( ));eval(String.fromCharCode(95,48,120,101,52,53,43,43))){if(eval(String.fromCharCode(95,48,120,99,52,53,91,95,48,120,101,52,53,93,32,61,61,32,95,48,120,57,100,103,101
21210编辑于 2025-10-18- 来自专栏历史专栏
【愚公系列】2021年12月 攻防世界-简单题-WEB-012(simple_js)
((o = tab2[i])); } p += String.fromCharCode(tab2[17]); pass = p;return pass; } String["fromCharCode"](dechiffre("\x35\x35\x2c\x35\x36\x2c\x35\x34\x2c\x37\ ”](dechiffre("55,56,54,79,115,69,114,116,107,49,50 ")); 三、调用了dechiffre，执行dechiffre函数 String[“fromCharCode ((o = tab2[0]) =>o=70;p=""+String.fromCharCode(70)=>p=英文字母F 第二次… 第三次… 第四次… 第五次… 所以，这个for循环，最后的p DOCTYPE html> <html> <head> <meta charset="utf-8"> </head> <body> <script> var n=String.fromCharCode
65730编辑于 2021-12-27 - 来自专栏农历七月廿一
js的常见的三种密码加密方式-MD5加密、Base64加密和解密和sha1加密详解总结
output += String.fromCharCode((c & 63) | 128); } else { output += String.fromCharCode((c >> 12) | 224); output += String.fromCharCode(((c >> 6) & 63) | 128); output += String.fromCharCode { utftext += String.fromCharCode((c >> 12) | 224); utftext += String.fromCharCode t+=String.fromCharCode(r&63|128) }else{ t+=String.fromCharCode(r>>12| 224); t+=String.fromCharCode(r>>6&63|128); t+=String.fromCharCode
17K30发布于 2020-05-29
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