利用Python实现汉译英的三种方法

一、前言

有道翻译API（主要推荐）

百度翻译API（需要申请key与密钥，每月100万免费字符）

谷歌翻译API（需要梯子，而且不稳定，不推荐）

二、代码

1、判断文本是否存在中文

def is_Chinese(content):  # 判断输入的内容是否是中文for ch in content:if '\u4e00' <= ch <= '\u9fff':return Trueelse:return False

2、有道翻译

import urllib.request
import urllib.parse
import json
import requests  # pip intasll requests
import execjs  # 安装指令：pip install PyExecJS
import random
import hashlib
import re# 有道翻译方法，不支持一次翻译一大段文字
def youdao_translate(content):'''实现有道翻译的接口'''url = 'http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule&sessionFrom=https://www.baidu.com/link'data = {'from': 'AUTO','to': 'AUTO','smartresult': 'dict','client': 'fanyideskweb','salt': '1500092479607','sign': 'd9f9a3aa0a7b34241b3fe30505e5d436','doctype': 'json','version': '2.1','keyfrom': 'fanyi.web','action': 'FY_BY_CL1CKBUTTON','typoResult': 'true'}data['i'] = content.replace('\n', '')data = urllib.parse.urlencode(data).encode('utf-8')wy = urllib.request.urlopen(url, data)html = wy.read().decode('utf-8')ta = json.loads(html)res = ta['translateResult'][0][0]['tgt']return resif __name__ == '__main__':res = youdao_translate("红色，沙发")

3、百度翻译

import urllib.request
import urllib.parse
import json
import requests  # pip intasll requests
import execjs  # 安装指令：pip install PyExecJS
import random
import hashlib
import re# 百度翻译方法
def baidu_translate(content):print(content)if len(content) > 4891:return '输入请不要超过4891个字符！'salt = str(random.randint(0, 50))# 申请网站 http://api.fanyi.baidu.com/api/transappid = '201912XXXXXXXXXXX'  # 这里写你自己申请的secretKey = 'e83BXpQXXXXXXXXXXX'  # 这里写你自己申请的sign = appid + content + salt + secretKeysign = hashlib.md5(sign.encode(encoding='UTF-8')).hexdigest()head = {'q': f'{content}','from': 'en','to': 'zh','appid': f'{appid}','salt': f'{salt}','sign': f'{sign}'}j = requests.get('http://api.fanyi.baidu.com/api/trans/vip/translate', head)print(j.json())res = j.json()['trans_result'][0]['dst']res = re.compile('[\\x00-\\x08\\x0b-\\x0c\\x0e-\\x1f]').sub(' ', res)print(res)return resif __name__ == '__main__':ret = baidu_translate("红色，沙发")print(ret)

4、谷歌翻译

import urllib.request
import urllib.parse
import json
import requests  # pip intasll requests
import execjs  # 安装指令：pip install PyExecJS
import random
import hashlib
import reclass Py4Js():def __init__(self):self.ctx = execjs.compile(""" function TL(a) { var k = ""; var b = 406644; var b1 = 3293161072; var jd = "."; var $b = "+-a^+6"; var Zb = "+-3^+b+-f"; for (var e = [], f = 0, g = 0; g < a.length; g++) { var m = a.charCodeAt(g); 128 > m ? e[f++] = m : (2048 > m ? e[f++] = m >> 6 | 192 : (55296 == (m & 64512) && g + 1 < a.length && 56320 == (a.charCodeAt(g + 1) & 64512) ? (m = 65536 + ((m & 1023) << 10) + (a.charCodeAt(++g) & 1023), e[f++] = m >> 18 | 240, e[f++] = m >> 12 & 63 | 128) : e[f++] = m >> 12 | 224, e[f++] = m >> 6 & 63 | 128), e[f++] = m & 63 | 128) } a = b; for (f = 0; f < e.length; f++) a += e[f], a = RL(a, $b); a = RL(a, Zb); a ^= b1 || 0; 0 > a && (a = (a & 2147483647) + 2147483648); a %= 1E6; return a.toString() + jd + (a ^ b) }; function RL(a, b) { var t = "a"; var Yb = "+"; for (var c = 0; c < b.length - 2; c += 3) { var d = b.charAt(c + 2), d = d >= t ? d.charCodeAt(0) - 87 : Number(d), d = b.charAt(c + 1) == Yb ? a >>> d: a << d; a = b.charAt(c) == Yb ? a + d & 4294967295 : a ^ d } return a } """)def getTk(self, text):return self.ctx.call("TL", text)# 谷歌翻译方法：需要梯子，目前有些问题，暂不考虑
def google_translate(content):'''实现谷歌的翻译'''content = content.replace('\n', '')print(content)js = Py4Js()tk = js.getTk(content)if len(content) > 4891:return '输入请不要超过4891个字符！'param = {'tk': tk, 'q': content}result = requests.get("""http://translate.google.cn/translate_a/single?client=t&sl=en &tl=zh-CN&hl=zh-CN&dt=at&dt=bd&dt=ex&dt=ld&dt=md&dt=qca&dt=rw&dt=rm&dt=ss &dt=t&ie=UTF-8&oe=UTF-8&clearbtn=1&otf=1&pc=1&srcrom=0&ssel=0&tsel=0&kc=2""", params=param)# 返回的结果为Json，解析为一个嵌套列表trans = result.json()[0]res = ''for i in range(len(trans)):line = trans[i][0]if line != None:res += trans[i][0]return resif __name__ == '__main__':# res = google_translate("红色，沙发")# print(res)