import urllib.request
import urllib.parse
import json
import tkinter as tk
from tkinter import *

from tkinter import messagebox

window = tk.Tk()
window.geometry('600x400+200+200')
window.title("有道词典翻译")
L1=tk.Label(window,text='请输入翻译内容:',font=('楷体',20),fg='blue')
L1.place(x=30)
E1=tk.Entry(window,text="",font=('宋体',16),width=30)
E1.place(x=80,y=50)
def transit():
  T1.delete(1.0, tk.END)
  var = E1.get()
  if var == '':
    messagebox.showinfo('提示', message='请输入要翻译内容')
  else:

    data = {
      'i': var,
      'from': 'AUTO',
      'to': 'AUTO',
      'smartresult': 'dict',
      'client': 'fanyideskweb',
      'salt': '15619904887064',
      'sign': 'a14ab29954353efd9d6aa92ebd94aa62',
      'ts': '1561990488706',
      'bv': '3a019e7d0dda4bcd253903675f2209a5',
      'doctype': 'json',
      'version': '2.1',
      'keyfrom': 'fanyi.web',
      'action': 'FY_BY_CLICKBUTTION'
    }
    url = "http://fanyi.youdao.com/translate"

    data = urllib.parse.urlencode(data).encode('utf-8')
    response = urllib.request.urlopen(url,data)
    html = response.read().decode('utf-8')

    #print(html)
    target=json.loads(html)
    #print(target)
    #a=target['translateResult'][0][0]
    #print(a)
    b=target['translateResult'][0][0]['tgt']
    #print(b)
    T1.insert('end', b)



T1=tk.Text(window,height=4)
T1.place(x=20,y=130)

B1=tk.Button(window,text='TransLate it',width=10,height=3,fg='red',command=transit)
B1.place(x=500,y=30)

canvas = tk.Canvas(window, height=160, width=500)#创建画布
image_file = tk.PhotoImage(file="cat.gif")#加载图片文件
image = canvas.create_image(0,0, anchor='nw', image=image_file)#将图片置于画布上
canvas.place(x=50,y=210)#放置画布（为上端）
window.mainloop()