day31-python之内置函数

1.udp多线程

import socketserver

class MyServer(socketserver.BaseRequestHandler):

    def handle(self):

        print(self.request)

        print('收到客户端的消息是',self.request[0])

        self.request[1].sendto(self.request[0].upper(),self.client_address)

if __name__ == '__main__':

    s=socketserver.ThreadingUDPServer(('127.0.0.1',8086),MyServer) #多线程

    s.serve_forever()

from socket import *

ip_port=('127.0.0.1',8086)

buffer_size=1024

udp_client=socket(AF_INET,SOCK_DGRAM) #数据报

while True:

    msg=input('>>: ').strip()

    udp_client.sendto(msg.encode('utf-8'),ip_port)

    data,addr=udp_client.recvfrom(buffer_size)

    # print(data.decode('utf-8'))

    print(data)

from socket import *

ip_port=('127.0.0.1',8086)

buffer_size=1024

udp_client=socket(AF_INET,SOCK_DGRAM) #数据报

while True:

    msg=input('>>: ').strip()

    udp_client.sendto(msg.encode('utf-8'),ip_port)

    data,addr=udp_client.recvfrom(buffer_size)

    # print(data.decode('utf-8'))

    print(data)

2.内置函数

# # 三元运算

# # a = 1

# # result = "xiaoming" if a == 1 else "xiaogang"

# # print(result)

#

#

# # lambda 表达式

#

# # def func(arg):

# #     return arg + 1

# # print(func(2))

#

# # func = lambda *args : print(args)

# # print(func(1,2,3))

#

# # map

# # li = [1,2,3,4,5]

# # def func(s):

# #      return s + 1

# # ret = map(func,li)

# # print(list(ret))

#

# # print(list(map(lambda li : li + 1 ,li)))

#

# # filter 过滤

#

# # li = [22,33,44,55]

# #

# # def func(s):

# #     if s > 33:

# #         return s

# # ret = filter(func,li)

# # print(list(ret))

# #

# # print(list(filter(lambda s : s >33 ,li)))

#

# # reduce

#

from functools import reduce

#

# # li = ["a","l","e","x"]

# # def func(a,b):

# #     return a+b

# # ret = reduce(func,li)

# # print(ret)

#

# li = [1,2,3,4,5]

# print(reduce(lambda a,b : a +b ,li))

#

#

li = [1,2,3,4,5]

print(reduce(lambda a, b: a + b, li))