【注】UDP的优缺点：
1：传输效率高
2：易出现数据丢失
3：以数据报的形式传输
思路：
step1：获取客户端请求
step2：查询单词
step3：响应客户端
Client.py
from socket import *SERVICE_ADDR = ("127.0.0.1", 8888)udp_socket = socket(AF_INET, SOCK_DGRAM)
while True:word = input(">>")if word == "##":breakudp_socket.sendto(word.encode(), SERVICE_ADDR)data, addr = udp_socket.recvfrom(1024)print(f"{data.decode()}")
udp_socket.close()
Server.py
import pymysql
from socket import *class Query:# 连接数据库def __init__(self):# 连接数据库self.count = 0self.kwargs = {"host": "localhost","port": 3306,"user": "root","password": "123456","database": "dict","charset": "utf8"}self.db = pymysql.connect(**self.kwargs)self.cur = self.db.cursor()# udp套接字对象self.udp_socket = socket(AF_INET, SOCK_DGRAM)self.udp_socket.bind(("0.0.0.0", 8888))def select_db(self, query_word):query_sql = "select mean from words where word = %s"self.cur.execute(query_sql, [query_word])mean = self.cur.fetchone() # 返回的是元组if mean == None: # 查不到returnreturn mean[0]def run(self):while True:data, addr = self.udp_socket.recvfrom(1024) # 获取请求self.count += 1print(f"请求{self.count},查询单词：{data.decode()},用户ip：{addr[0]}")mean = self.select_db(data.decode())if mean == None:self.udp_socket.sendto("无结果!".encode(), addr)else:self.udp_socket.sendto(mean.encode(), addr)if __name__ == '__main__':query = Query()query.run()
)
