本文例項為大家分享了python實現電子詞典的具體程式碼，供大家參考，具體內容如下

服務端

#!/usr/bin/env python3
from __future__ import unicode_literals
# coding=utf-8


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

DICT_TEXT = "./dict.txt"
HOST = '0.0.0.0'
PORT = 8000
ADDR = (HOST,PORT)

# 主控制流程


def main():
 # 連線資料庫
 db = pymysql.connect\
  ('localhost','root','123456','dict')

 # 建立流式套接字
 s = socket()
 s.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)
 s.bind(ADDR)
 s.listen(5)
 # 或略子程序退出
 signal.signal(signal.SIGCHLD,signal.SIG_IGN)

 while True:
  try:
   c,addr = s.accept()
   print("Connect from",addr)
  except KeyboardInterrupt:
   s.close()
   sys.exit("伺服器退出")
  except Exception as e:
   print(e)
   continue
  # 建立子程序處理客戶端請求
  pid = os.fork()
  if pid == 0:
   s.close()
   do_child(c,db)
  else:
   c.close()


def do_child(c,db):
 # 迴圈接收請求
 while True:
  data = c.recv(128).decode()
  print("Request:",data)
  if (not data) or data[0] == 'E':
   c.close()
   sys.exit(0)
  elif data[0] == 'R':
   do_register(c,db,data)
  elif data[0] == "L":
   do_login(c,data)
  elif data[0] == 'Q':
   do_query(c,data)
  elif data[0] == 'H':
   do_history(c,data)


def do_register(c,data):
 l = data.split(' ')
 name = l[1]
 passwd = l[2]

 cursor = db.cursor()
 sql = \
  "select * from user where name='%s'" % name
 cursor.execute(sql)
 r = cursor.fetchone()
 if r != None:
  c.send(b'EXISTS')
  return

 sql = "insert into user (name,passwd)\
  values ('%s','%s')" % (name,passwd)
 try:
  cursor.execute(sql)
  db.commit()
  c.send(b'OK')
 except:
  db.rollback()
  c.send(b'FALL')
  return
 else:
  print("%s註冊成功" % name)


def do_login(c,data):
 l = data.split(' ')
 name = l[1]
 passwd = l[2]
 cursor = db.cursor()

 sql = "select * from user where \
 name='%s' and passwd='%s'" % (name,passwd)

 cursor.execute(sql)
 r = cursor.fetchone()
 if r == None:
  c.send('使用者名稱或密碼不正確'.encode())
 else:
  c.send(b'OK')


def do_query(c,data):
 l = data.split(' ')
 name = l[1]
 word = l[2]
 cursor = db.cursor()

 def insert_history():
  tm = time.ctime()
  sql = "insert into hist (name,word,time)\
   values ('%s','%s',tm)
  try:
   cursor.execute(sql)
   db.commit()
  except:
   db.rollback()
   return

 try:
  f = open(DICT_TEXT,'rb')
 except:
  c.send("500 服務端異常".encode())
  return
 while True:
  line = f.readline().decode()
  w = line.split(' ')[0]
  if (not line) or w > word:
   c.send("沒找到該單詞".encode())
   break
  elif w == word:
   c.send(b'OK')
   time.sleep(0.1)
   c.send(line.encode())
   insert_history()
   break
 f.close()


def do_history(c,data):
 name = data.split(' ')[1]
 cursor = db.cursor()

 try:
  sql = "select * from hist \
  where name='%s'" % name
  cursor.execute(sql)
  r = cursor.fetchall()
  if not r:
   c.send('沒有歷史記錄'.encode())
   return
  else:
   c.send(b'OK')
 except:
  c.send("資料庫查詢錯誤".encode())
  return
 n = 0
 for i in r:
  n += 1
  # 最多顯示10條
  if n > 10:
   break
  time.sleep(0.1)
  msg = "%s %s %s" % (i[1],i[2],i[3])
  c.send(msg.encode())
 time.sleep(0.1)
 c.send(b'##')


if __name__ == "__main__":
 main()

客戶端

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

from socket import *
import sys 
import getpass

def main():
 if len(sys.argv) < 3:
  print("argv is error")
  return
 HOST = sys.argv[1]
 PORT = int(sys.argv[2])
 ADDR = (HOST,PORT)

 s = socket()
 s.connect(ADDR)

 while True:
  print('''\n
   ===========Welcome=========
   --1.註冊 2.登入 3.退出--
   ===========================
   ''')
  try:
   cmd = int(input("輸入選項>>"))
  except Exception:
   print("輸入命令錯誤")
   continue 

  if cmd not in [1,2,3]:
   print("對不起，沒有該命令")
   sys.stdin.flush() #清除輸入
   continue 
  elif cmd == 1:
   name = do_register(s)
   if name != 1:
    print("註冊成功,直接登入！")
    login(s,name)
   else:
    print("註冊失敗！")
  elif cmd == 2:
   name = do_login(s)
   if name != 1:
    print("登入成功！")
    login(s,name)
   else:
    print("登入失敗！")
  elif cmd == 3:
   s.send(b"E")
   sys.exit("謝謝使用")

def do_register(s):
 while True:
  name = input("使用者名稱:")
  passwd = getpass.getpass("密 碼:")
  passwd1 = getpass.getpass("確認密碼:")

  if (' ' in name) or (' ' in passwd):
   print("使用者名稱密碼不允許空格")
   continue
  if passwd != passwd1:
   print("兩次密碼不一致")
   continue

  msg = "R {} {}".format(name,passwd)
  #傳送請求
  s.send(msg.encode())
  #接收回復
  data = s.recv(128).decode()

  if data == "OK":
   return name
  elif data == 'EXISTS':
   print("該使用者已存在")
   return 1
  else:
   return 1
def do_login(s):
 name = input("使用者名稱:")
 passwd = getpass.getpass("密 碼:")
 msg = "L {} {}".format(name,passwd)
 s.send(msg.encode())
 data = s.recv(128).decode()

 if data == 'OK':
  return name
 else:
  print(data)
  return 1

def login(s,name):
 while True:
  print('''\n
   ===========查詢介面============
   1.查詞  2.歷史記錄 3.登出
   =============================
   ''')
  try:
   cmd = int(input("輸入選項>>"))
  except Exception:
   print("命令錯誤")
   continue
  if cmd not in [1,3]:
   print("對不起，沒有該命令")
   sys.stdin.flush() #清除輸入
   continue 
  elif cmd == 1:
   do_query(s,name)
  elif cmd == 2:
   do_history(s,name)
  elif cmd == 3:
   return

def do_query(s,name):
 while True:
  word = input("單詞:")
  if word == "##":
   break 
  msg = "Q {} {}".format(name,word)
  s.send(msg.encode())
  data = s.recv(128).decode()
  if data == 'OK':
   data = s.recv(2048).decode()
   print(data)
  else:
   print(data)


def do_history(s,name):
 msg = "H {}".format(name)
 s.send(msg.encode())
 data = s.recv(128).decode()
 if data == 'OK':
  while True:
   data = s.recv(1024).decode()
   if data == "##":
    break
   print(data)
 else:
  print(data)


if __name__ == "__main__":
 main()

插入字典

import pymysql 
import re

f = open('dict.txt')
db = pymysql.connect\
('localhost','dict')

cursor = db.cursor()

for line in f:
 try:
  l = re.split("[ ]+",line)
 except:
  pass 
 sql = "insert into words (word,interpret)\
  values ('%s','%s')"%(l[0],' '.join(l[1:]))

 try:
  cursor.execute(sql)
  db.commit()
 except:
  db.rollback()
  
f.close()

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。