python的UDP和TCP

记录：备忘录。
1.UDP客户端

from socket import *
#1. 创建套接字
clientSocket = socket(AF_INET, SOCK_DGRAM)
#2. 连接地址
sendAddr = ('192.168.109.1', 8086)
#3. 发送的数据
sendData = "Hello python."
#4. 发送数据到目标地址上
clientSocket.sendto(sendData.encode(), sendAddr)
#5. 关闭套接字
clientSocket.close()

2.UDP服务端

from socket import *
#1.创建套接字
serverSocket = socket(AF_INET, SOCK_DGRAM)
#2.绑定地址
serverSocket.bind(("192.168.109.1", 8086))
#3.接收数据
recvData = serverSocket.recvfrom(1024)
#4.打印数据
print("接收数据:%s"%(recvData[0]))
#5.关闭连接
serverSocket.close()

3.TCP客户端

from socket import *
#需要连接的ip和端口
ip = "192.168.109.1"
port=8085
addr = (ip,port)
# 1.创建socket
client = socket(AF_INET,SOCK_STREAM)
# 2.连接
client.connect(addr)
# 3.发送数据
data = "Hello python."
client.send(data.encode())
# 4.接收数据
receiveData = client.recv(1024)
# 5.打印接收数据
print("接收服务端数据: %s"%(receiveData.decode('gbk')))
# 6.关闭套接字
client.close()

4.TCP服务端

from socket import *
# 1.创建socket
server=socket(AF_INET,SOCK_STREAM)
# 2.绑定端口
server.bind(("192.168.109.1",8085))
# 3.监听
server.listen(5)
# 4.接收连接
clientSocket,clientInfo = server.accept()
print("打印客户端Socket信息",clientSocket)
print("打印客户端ip和端口",clientInfo)
# 5.接收数据
recvData = clientSocket.recv(1024)
print("接收客户端信息:%s"%(str(recvData)))
print("向客户端发送信息:",("I get it.".encode()))
clientSocket.send("I'm get it.".encode())
# 6.关闭连接
clientSocket.close()
server.close()

以上，感谢。