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1.打开有道在线翻译，并请求翻译

1.1获取翻译接口 1.2两次翻译数据对比 第一次 第二次 总结： 我们发现请求数据有差异： salt,ts,sign，并且可以看到i对应翻译词组

2.查找js处理逻辑

2.1查看对应js 2.2处理逻辑 2.3python处理

word = "test"import hashlibimport timeimport random# var t = n.md5(navigator.appVersion),对应浏览器版本t = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36"bv = hashlib.md5(bytes(t,encoding="utf-8")).hexdigest()#b4046c447614dcbe06d949fe3062a42ar = str(int(round(time.time(),3)*1000))ts = r      #1585970420994print(ts)i = ts + str(random.randint(1,10))salt = i #15859705441292sign = hashlib.md5(bytes("fanyideskweb" + word + salt +"Nw(nmmbP%A-r6U3EUn]Aj",encoding="utf-8")).hexdigest()print(sign) #582d24148760d00627461c99907b9476

3请求测试

import requestsimport hashlibimport timeimport random# var t = n.md5(navigator.appVersion),对应浏览器版本t = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36"def get_auth_data(keyword):    bv = hashlib.md5(bytes(t,encoding="utf-8")).hexdigest()    #b4046c447614dcbe06d949fe3062a42a    # 70244e0061db49a9ee62d341c5fed82a    r = str(int(round(time.time(),3)*1000))    ts = r      #1585970420994    i = ts + str(random.randint(1,10))    salt = i #15859705441292    sign = hashlib.md5(bytes("fanyideskweb" + keyword + salt +"Nw(nmmbP%A-r6U3EUn]Aj",encoding="utf-8")).hexdigest()    return bv,ts,salt,signdef get_init_cookies():    headers = {"User-Agent": t}    res = requests.get("http://fanyi.youdao.com/",headers=headers)    cookie_list = []    for cookie in res.cookies:        cookie_list.append("%s=%s"%(cookie.name,cookie.value))    return ";".join(cookie_list)def translate(keyword):    bv,ts,salt,sign = get_auth_data(keyword)    cookies = get_init_cookies()    url = "http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule"    headers = {"Content-Type": "application/x-www-form-urlencoded",               "User-Agent": t,               "Referer":"http://fanyi.youdao.com/",               "Cookie":cookies}    data = {"i": keyword,            "from": "zh-CHS",            "to": "en",            "smartresult": "dict",            "client": "fanyideskweb",            "salt": salt,            "sign": sign,            "ts": ts,            "bv": bv,            "doctype": "json",            "version": "2.1",            "keyfrom": "fanyi.web",            "action": "Y_BY_CLICKBUTTION"}    res = requests.post(url,params=data,headers=headers)    print(res.text) translate("测试")

返回：

{ “translateResult”: [[{ “tgt”: “test”, “src”: “测试” } ]], “errorCode”: 0, “type”: “zh-CHS2en”, “smartResult”: { “entries”: ["", “[试验] test\r\n”, “measurement\r\n”], “type”: 1 } }

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