爬虫案例5: 百度翻译--英汉互译

本文主要是介绍爬虫案例5: 百度翻译--英汉互译，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

目标页面：https://fanyi.baidu.com/
实现：英译汉，汉译英

js_code.js 文件保存下面代码

function fn(t) {function n(t, e) {for (var n = 0; n < e.length - 2; n += 3) {var r = e.charAt(n + 2);r = "a" <= r ? r.charCodeAt(0) - 87 : Number(r),r = "+" === e.charAt(n + 1) ? t >>> r : t << r,t = "+" === e.charAt(n) ? t + r & 4294967295 : t ^ r}return t}var r = '320305.131321201'var o, i = t.match(/[\\uD800-\\uDBFF][\\uDC00-\\uDFFF]/g);if (null === i) {var a = t.length;a > 30 && (t = "".concat(t.substr(0, 10)).concat(t.substr(Math.floor(a / 2) - 5, 10)).concat(t.substr(-10, 10)))} else {for (var s = t.split(/[\\uD800-\\uDBFF][\\uDC00-\\uDFFF]/), c = 0, u = s.length, l = []; c < u; c++)"" !== s[c] && l.push.apply(l, function(t) {if (Array.isArray(t))return e(t)}(o = s[c].split("")) || function(t) {if ("undefined" != typeof Symbol && null != t[Symbol.iterator] || null != t["@@iterator"])return Array.from(t)}(o) || function(t, n) {if (t) {if ("string" == typeof t)return e(t, n);var r = Object.prototype.toString.call(t).slice(8, -1);return "Object" === r && t.constructor && (r = t.constructor.name),"Map" === r || "Set" === r ? Array.from(t) : "Arguments" === r || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r) ? e(t, n) : void 0}}(o) || function() {throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()),c !== u - 1 && l.push(i[c]);var p = l.length;p > 30 && (t = l.slice(0, 10).join("") + l.slice(Math.floor(p / 2) - 5, Math.floor(p / 2) + 5).join("") + l.slice(-10).join(""))}for (var d = "".concat(String.fromCharCode(103)).concat(String.fromCharCode(116)).concat(String.fromCharCode(107)), h = (null !== r ? r : (r = window[d] || "") || "").split("."), f = Number(h[0]) || 0, m = Number(h[1]) || 0, g = [], y = 0, v = 0; v < t.length; v++) {var _ = t.charCodeAt(v);_ < 128 ? g[y++] = _ : (_ < 2048 ? g[y++] = _ >> 6 | 192 : (55296 == (64512 & _) && v + 1 < t.length && 56320 == (64512 & t.charCodeAt(v + 1)) ? (_ = 65536 + ((1023 & _) << 10) + (1023 & t.charCodeAt(++v)),g[y++] = _ >> 18 | 240,g[y++] = _ >> 12 & 63 | 128) : g[y++] = _ >> 12 | 224,g[y++] = _ >> 6 & 63 | 128),g[y++] = 63 & _ | 128)}for (var b = f, w = "".concat(String.fromCharCode(43)).concat(String.fromCharCode(45)).concat(String.fromCharCode(97)) + "".concat(String.fromCharCode(94)).concat(String.fromCharCode(43)).concat(String.fromCharCode(54)), k = "".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(102)), x = 0; x < g.length; x++)b = n(b += g[x], w);return b = n(b, k),(b ^= m) < 0 && (b = 2147483648 + (2147483647 & b)),"".concat((b %= 1e6).toString(), ".").concat(b ^ f)
}

main.py 保存下面代码


import requests
import js2py 
import time
import oscur_path = os.path.dirname(__file__)def get_sign(word):with open(os.path.join(cur_path, 'js_code.js'), 'r', encoding='utf-8') as f:js_code = f.read()fn = js2py.eval_js(js_code) # 不需要本地环境配置node.js环境，也可执行js代码return fn(word)def get_langdetect(word):url = 'https://fanyi.baidu.com/langdetect'data = {'query': word}headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36'}resp_json_data = requests.post(url, data=data, headers=headers).json()return resp_json_data['lan']def get_cookie():with open(os.path.join(cur_path, 'cookie.txt'), 'r', encoding='utf-8') as fp:cookie = fp.read()  # cookie 自己在浏览器中找一下即可，保存在同级目录下 cookie.txt中return cookieif __name__ == '__main__':word = input('请输入查找的单词: ')lan = get_langdetect(word)from_lan = ''to_lan = ''if lan == 'zh':from_lan = 'zh'to_lan = 'en'elif lan == 'en':from_lan = 'en'to_lan = 'zh'fanyi_url = 'https://fanyi.baidu.com/v2transapi?from=' + from_lan + '&to='+ to_landata = {'from': from_lan,'to': to_lan,'query': word,'transtype': 'realtime','simple_means_flag': 3,'sign': get_sign(word),'token': '43c3f0262c18388a7bb9ded33a789a10','domain': 'common','ts': int(time.time() * 1000)}headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36','Cookie': get_cookie()}resp = requests.post(url=fanyi_url, data=data, headers=headers)if resp.status_code == 200:print(f"状态码为200的结果---【{word}】的翻译为: ", resp.json()['trans_result']['data'][0]['dst'])else:print("状态码不为200的结果: ", resp.json())