python实现在线翻译

import urllib.request
import urllib.parse
import json

def translation():
  while 1:
    print(\"-\"*30)
    n = input(\"请选择：1 翻译 2 退出 ：\")
    if n ==\'1\':
      content = input(\"请输入要翻译的内容：\")
      url = \'http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule\'
      data={}
      data[\'i\']= content
      data[\'from\']= \'AUTO\'
      data[\'to\']=\'AUTO\'
      data[\'smartresult\'] =\'dict\'
      data[\'client\']= \'fanyideskweb\'
      data[\'salt\']= \'15790094838498\'
      data[\'sign\']= \'9ab763875001c1949ae49d3c230ba19f\'
      data[\'ts\']= \'1579009483849\'
      data[\'bv\']= \'5a84f6fbcebd913f0a4e81b6ee54608\'
      data[\'doctype\']= \'json\'
      data[\'version\']= \'2.1\'
      data[\'keyfrom\']= \'fanyi.web\'
      data[\'action\']= \'FY_BY_CLICKBUTTION\'
      data = urllib.parse.urlencode(data).encode(\'utf-8\')
      response = urllib.request.urlopen(url,data)
      html = response.read().decode(\'utf-8\')
      #print(json.loads(html))
      target =json.loads(html)
      print(\"翻译结果;%s\" % (target[\'translateResult\'][0][0][\'tgt\']))
    elif n==\'2\':
      print(\"感谢使用！\")
      break
    else:
      print(\"输入有误！\")

if __name__==\'__main__\':
  translation()