python学习socket的客户端实现

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服务端见点击打开链接

socket的异常

socket的TCP和UDP客户端模型

TCP的客户端

import socket#ip:127.0.0.1,port 3214HOST='' #warning:Ip addr can only be dropped in server!PORT=3214#AF_INET IPV4#SOCK_DGRAM UDPs=socket.socket()#try to receive data from server & send data to server#Pay attention to try statement .Client need connect to server in tcp,so you may catch exceptions,#while in udp you just receive and send data!try:    s.connect((HOST,PORT))    data=u'Hello TCP Server!'    while data:        #encode data from utf-8  to bytes        s.sendall(data.encode('utf-8'))        recv_data=s.recv(1024)        #decode data from bytes to utf-8        print 'Receive from Server:\n',recv_data.decode('utf-8')        data=raw_input('Please input an info:\n')except socket.error as err:    print errfinally:    s.close()

UDP的客户端

#coding:utf-8import socketHOST='127.0.0.1'PORT=3214s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)data='Hello UDP server!'while data:    s.sendto(data.encode('utf-8'),(HOST,PORT))    if data == 'bye':        break    recv_data,addr=s.recvfrom(1024)    print 'Receive from Server:\n',recv_data.decode('utf-8')    data=raw_input('Please input an info:\n')s.close()

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