python实现电子词典

本文实例为大家分享了python实现电子词典的具体代码，供大家参考，具体内容如下

# -*- coding: utf-8 -*-
#youdanTest.py
import urllib
import json

# 设置一个退出程序的出口
isOut = False

# 不断调用爬取翻译页面的功能
# 直到isOut被设置为True，退出程序

def query(keys):
while True:
 if isOut == True:
  break

# 假定用户输入“CloseMe”，则退出
 key = keys
 if key == "CloseMe":
  isOut = True
  continue # 回到循环开始处，然后结果条件满足退出

# 做真正的查询操作
 url = "http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule&smartresult=ugc&sessionFrom=null"

# 构造headers
 headers = {"User-Agent": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36",
    "X-Requested-With": "XMLHttpRequest",
    "Accept": "application/json, text/javascript, */*; q=0.01",
    "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8"
    }

# 把form数据转规范化，然后post给服务端
 formdata = {
  "i": key,
  "from": "AUTO",
  "to": "AUTO",
  "smartresult": "dict",
  "client": "fanyideskweb",
  "salt": "1523933959290",
  "sign": "248f5d216c45a64c38a3dccac0f4600d",
  "doctype": "json",
  "version": "2.1",
  "keyfrom": "fanyi.web",
  "action": "FY_BY_REALTIME",
  "typoResult": "false"
 }
 data = bytes(urllib.parse.urlencode(
     formdata),
     encoding="utf-8")
 # 给服务器发送post请求
 req = urllib.request.Request(url,
         data,
         headers,
         method="POST")
 response = urllib.request.urlopen(req)
 info = response.read().decode("utf-8")
 jsonLoads = json.loads(info)
 return jsonLoads['translateResult'][0][0]["tgt"]

服务端

#!/usr/bin/python3
# coding=utf-8

from signal import *
from socket import *
import pymysql
from time import *
import sys
import os
from youdaoTest import query

def do_child(connfd, db):
while True:
 msg = connfd.recv(128).decode()
 print("msg : ", msg)

if msg[0] == 'R':
  do_register(connfd, msg, db)

if msg[0] == 'L':
  do_login(connfd, msg, db)

if msg[0] == 'Q':
  do_query(connfd, msg, db)

if msg[0] == 'H':
  do_history(connfd, msg, db)

if msg[0] == 'E':
  connfd.close()
  sys.exit(0)
return

def do_register(connfd, msg, db):
print("in register.......")
cursor = db.cursor()
s = msg.split(' ')
name = s[1]
passwd = s[2]

sql = "select * from user where name = '％s'" ％ name
cursor.execute(sql)
data = cursor.fetchone()
print(data)

if data != None:
 connfd.send("FALL".encode())
 return

sql = "insert into user values ('％s','％s')" ％ (name, passwd)

try:
 cursor.execute(sql)
 db.commit()
 connfd.send('OK'.encode())
except:
 connfd.send("FALL".encode())
 db.rollback()
 return
else:
 print("register OK !")

def do_login(connfd, msg, db):
print("in login.......")
cursor = db.cursor()
s = msg.split(' ')
name = s[1]
passwd = s[2]

try:
 sql = "select * from user where name = '％s' and passwd = '％s'" ％ (
  name, passwd)
 cursor.execute(sql)
 data = cursor.fetchone()
 print(data)
except:
 pass
if data == None:
 connfd.send("FALL".encode())
else:
 connfd.send('OK'.encode())
return

def do_query(connfd, msg, db):
print("in query.......")
start = time()
cursor = db.cursor()
s = msg.split(' ')
words = s[1]
name = s[2]
msg = query(words)
connfd.send(msg.encode())
insert_history(db, words, name)

def do_history(connfd, msg, db):
print('in history...')
s = msg.split(' ')
name = s[1]
cursor = db.cursor()
sql = 'select * from history where name = "％s"' ％ name
try:
 cursor.execute(sql)
 data = cursor.fetchall()
 connfd.send('OK'.encode())
except:
 connfd.send('FALL'.encode())
sleep(0.1)
for msg in data:
 name = msg[0]
 word = msg[1]
 time = msg[2]
 sleep(0.01)
 connfd.send(('％s ％s ％s' ％ (name, word, time)).encode())
sleep(0.1)
connfd.send('over'.encode())

def insert_history(db, words, name):
time = ctime()
cursor = db.cursor()
sql = 'insert into history values ("％s","％s","％s")' ％ (name, words, time)
try:
 cursor.execute(sql)
 db.commit()
except:
 print('into history failed')
 db.rollback()

def main():
signal(SIGCHLD, SIG_IGN)
db = pymysql.connect('localhost', 'root', '123456', 'dict')

HOST = sys.argv[1]
PORT = int(sys.argv[2])
sockfd = socket()
sockfd.bind((HOST, PORT))
sockfd.listen(5)

while True:
 try:
  connfd, addr = sockfd.accept()
  print("connect addr : ", addr)
 except KeyboardInterrupt:
  raise
 except:
  continue

pid = os.fork()
 if pid < 0:
  print("create child process failed")
  connfd.close()
  continue
 elif pid == 0:
  sockfd.close()
  do_child(connfd, db)
 else:
  connfd.close()
  continue

db.close()
sockfd.close()
sys.exit(0)

if __name__ == "__main__":
main()

电子词典客户端

#!/usr/bin/python
# coding=utf-8

from signal import *
from socket import *
from time import *
import sys
import os

def do_register(sockfd, msg):
name = input("input your user name >>")
passwd = input("input your user passwd >>")
msg = 'R ％s ％s' ％ (name, passwd)

sockfd.send(msg.encode())
msg = sockfd.recv(128).decode()

if msg[0:2] == 'OK':
 return 0
else:
 return -1

def do_login(sockfd, msg):
name = input("input your user name >>")
passwd = input("input your user passwd >>")
msg = 'L ％s ％s' ％ (name, passwd)

sockfd.send(msg.encode())
msg = sockfd.recv(128).decode()

if msg[0:2] == 'OK':
 return name
else:
 return -1

def do_query(sockfd, msg, name):
while True:
 word = input("input word >>")

if word == '##':
  return

msg = 'Q ％s ％s' ％ (word, name)

sockfd.send(msg.encode())
 msg = sockfd.recv(128).decode()

if msg[0:2] == 'OK':
  msg = sockfd.recv(1024).decode()
  if msg == " ":
   print("not found this word")
  print(msg)
  # elif msg[:11] == 'found error':
  #  print('found error')
  #  continue

else:
  print("fail to query")
  continue

def do_history(sockfd, msg, name):

msg = 'H ％s' ％ name
sockfd.send(msg.encode())
msg = sockfd.recv(128).decode()

if msg[0:2] == 'OK':
 while True:
  data = sockfd.recv(1024).decode()
  if data == 'over':
   break

print(data)
else:
 print("fail to history")
 return -1

def main():
HOST = sys.argv[1]
PORT = int(sys.argv[2])
msg = None

sockfd = socket()

sockfd.connect((HOST, PORT))

def login(name):
 while True:
  print('''
  ==========query commend=========
  ---1:查词 2:历史记录 3:退出---
  ================================
  ''')
  try:
   cmd = int(input("Input commend >> "))
  except:
   print("Input error!")
   continue

if cmd not in [1, 2, 3]:
   print("input error!")
   sys.stdin.flush()
   continue

if cmd == 1:
   do_query(sockfd, msg, name)
  if cmd == 2:
   do_history(sockfd, msg, name)
  if cmd == 3:
   break
 return

while True:
 print('''
 =============Welcome=============
 ----1: 注册 2: 登陆 3: 退出----
 =================================
 ''')
 try:
  cmd = int(input("Input command >> "))
 except:
  print("Input error")
  continue

if cmd not in [1, 2, 3]:
  print("input error!")
  sys.stdin.flush()
  continue

if cmd == 1:
  if do_register(sockfd, msg) == 0:
   print("register OK!")
  else:
   print("register FALL")
 if cmd == 2:
  name = do_login(sockfd, msg)
  if name != -1:
   print("login OK!")
   login(name)
  else:
   print("register FALL")
 if cmd == 3:
  msg = 'E'
  sockfd.send(msg.encode())
  sockfd.close()
  sys.exit(0)

if __name__ == "__main__":
main()

查词时将单词发送到网络上，从有道中查询出单词翻译再返回给客户端。