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
服务端
代码语言：javascript复制#!/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():
# 连接数据库
db = pymysql.connect
('localhost', 'root', '123456', 'dict')
# 创建流式套接字
s = socket()
s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
s.bind(ADDR)
s.listen(5)
# 或略子进程退出
signal.signal(signal.SIGCHLD, signal.SIG_IGN)
while True:
try:
c, addr = s.accept()
print("Connect from", addr)
except KeyboardInterrupt:
s.close()
sys.exit("服务器退出")
except Exception as e:
print(e)
continue
# 创建子进程处理客户端请求
pid = os.fork()
if pid == 0:
s.close()
do_child(c, db)
else:
c.close()
def do_child(c, db):
# 循环接收请求
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, db, data)
elif data[0] == 'Q':
do_query(c, db, data)
elif data[0] == 'H':
do_history(c, db, data)
def do_register(c, db, 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注册成功" % name)
def do_login(c, db, 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('用户名或密码不正确'.encode())
else:
c.send(b'OK')
def do_query(c, db, 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','%s')" % (name, word, tm)
try:
cursor.execute(sql)
db.commit()
except:
db.rollback()
return
try:
f = open(DICT_TEXT, 'rb')
except:
c.send("500 服务端异常".encode())
return
while True:
line = f.readline().decode()
w = line.split(' ')[0]
if (not line) or w word:
c.send("没找到该单词".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, db, 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('没有历史记录'.encode())
return
else:
c.send(b'OK')
except:
c.send("数据库查询错误".encode())
return
n = 0
for i in r:
n = 1
# 最多显示10条
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()客户端
代码语言：javascript复制#!/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.注册 2.登录 3.退出--
===========================
''')
try:
cmd = int(input("输入选项 "))
except Exception:
print("输入命令错误")
continue
if cmd not in [1,2,3]:
print("对不起，没有该命令")
sys.stdin.flush() #清除输入
continue
elif cmd == 1:
name = do_register(s)
if name != 1:
print("注册成功,直接登录！")
login(s,name)
else:
print("注册失败！")
elif cmd == 2:
name = do_login(s)
if name != 1:
print("登录成功！")
login(s,name)
else:
print("登录失败！")
elif cmd == 3:
s.send(b"E")
sys.exit("谢谢使用")
def do_register(s):
while True:
name = input("用户名:")
passwd = getpass.getpass("密 码:")
passwd1 = getpass.getpass("确认密码:")
if (' ' in name) or (' ' in passwd):
print("用户名密码不允许空格")
continue
if passwd != passwd1:
print("两次密码不一致")
continue
msg = "R {} {}".format(name,passwd)
#发送请求
s.send(msg.encode())
#接收回复
data = s.recv(128).decode()
if data == "OK":
return name
elif data == 'EXISTS':
print("该用户已存在")
return 1
else:
return 1
def do_login(s):
name = input("用户名:")
passwd = getpass.getpass("密 码:")
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
===========查询界面============
1.查词 2.历史记录 3.注销
=============================
''')
try:
cmd = int(input("输入选项 "))
except Exception:
print("命令错误")
continue
if cmd not in [1,2,3]:
print("对不起，没有该命令")
sys.stdin.flush() #清除输入
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("单词:")
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
代码语言：javascript复制import pymysql
import re
f = open('dict.txt')
db = pymysql.connect
('localhost','root','123456','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内容，希望对大家的学习有所帮助。
