Python 使用 Request 库爬取有道翻译并实现翻译功能

以下是使用 Python Request 库爬取有道翻译并实现模仿有道翻译功能的代码：

import requests
import hashlib
import time
import random
import json


def generate_sign(word):
    # 生成 sign 参数
    salt = str(int(time.time() * 1000) + random.randint(1, 10))
    sign_str = 'fanyideskweb' + word + salt + 'p09@Bn{h02_BIEe]$P^nG'
    sign = hashlib.md5(sign_str.encode('utf-8')).hexdigest()
    return sign, salt


def translate(word):
    url = 'http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule'

    headers = {
        'Accept': 'application/json, text/javascript, */*; q=0.01',
        'Accept-Encoding': 'gzip, deflate',
        'Accept-Language': 'en-US,en;q=0.9,zh-CN;q=0.8,zh;q=0.7',
        'Connection': 'keep-alive',
        'Content-Length': '238',
        'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
        'Cookie': 'OUTFOX_SEARCH_USER_ID=-602983607@10.168.8.64; OUTFOX_SEARCH_USER_ID_NCOO=1984557919.4675384; JSESSIONID=aaaOeZw8rZBtNJZgKjOvx; ___rl__test__cookies=1621336898264',
        'Host': 'fanyi.youdao.com',
        'Origin': 'http://fanyi.youdao.com',
        'Referer': 'http://fanyi.youdao.com/',
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36',
        'X-Requested-With': 'XMLHttpRequest'
    }

    data = {
        'i': word,
        'from': 'AUTO',
        'to': 'AUTO',
        'smartresult': 'dict',
        'client': 'fanyideskweb',
        'salt': '',
        'sign': '',
        'lts': '',
        'bv': '7e4d4f9b9c116b6a546f3c3bb2d8fcb7',
        'doctype': 'json',
        'version': '2.1',
        'keyfrom': 'fanyi.web',
        'action': 'FY_BY_REALTlME'
    }

    sign, salt = generate_sign(word)
    data['salt'] = salt
    data['sign'] = sign
    data['lts'] = str(int(time.time() * 1000))

    response = requests.post(url, headers=headers, data=data)
    result = json.loads(response.text)

    return result['translateResult'][0][0]['tgt']


if __name__ == '__main__':
    while True:
        word = input('请输入要翻译的单词或句子（输入 q 退出）：')
        if word == 'q':
            break
        result = translate(word)
        print(result)

运行代码后，会提示输入要翻译的单词或句子。输入后，程序会输出翻译结果。如果输入 q，则程序退出。