from tkinter import *
import urllib.request
import urllib.parse
import json
#实现翻译功能的函数
def translate(content):
   url='http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule&smartresult=ugc&sessionFrom=dict2.index'
   #第一种方法
   #head必须是字典类型的参数
   head={}
   head['User-Agent']='Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883'
   data={}
   data['type']='AUTO'
   data['i']= content
   data['doctype']= 'json'
   data['xmlVersion']= '1.8'
   data['keyfrom']= 'fanyi.web'
   data['ue']= 'UTF-8'
   data['action']= 'FY_BY_CLICKBUTTON'
   data['typoResult']='true'
   data=urllib.parse.urlencode(data).encode('utf-8')
   req=urllib.request.Request(url,data,head)
   response=urllib.request.urlopen(req)
   html=response.read().decode('utf-8')
   target=json.loads(html)
   result = target['translateResult'][0][0]['tgt']
   return result
#实现界面功能
root =Tk()
root.title('中英互译')
frame = Frame(root)
frame.grid(padx = 10, pady = 10)
v2 = StringVar()
Label(frame,text='输入要翻译的文字：').grid(row=0,column=0)
Label(frame,text='翻译之后的结果：').grid(row=5,column=0)
e1 = Entry(frame)
e1.grid(row = 0, column = 1)
e2 = Entry(frame, textvariable=v2, state='readonly')   .grid(row=5, column=1)
def trans():
  r = translate(e1.get())
  v2.set(r)
  #print(r)
Button(root,text='翻译',width=10,command=trans)    .grid(row=10,column=0,sticky=W)
Button(root,text='退出',width=10,command=root.quit)    .grid(row=10,column=1,sticky=E)
mainloop()