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

服务端

#!/usr/bin/env python3from __future__ import unicode_literals# coding=utf-8from socket import *import osimport pymysqlimport timeimport sysimport signalDICT_TEXT = './dict.txt'HOST = ’0.0.0.0’PORT = 8000ADDR = (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

#!/usr/bin/env python3#coding=utf-8from socket import *import sys import getpassdef 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 1def 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 1def 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: returndef 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

import pymysql import ref = 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，也希望大家多多支持好吧啦网。