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socket-UDP(BIO) |

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import socket

# 创建socket实例,type=socket.SOCK_DGRAM

client = socket.socket(type=socket.SOCK_DGRAM)

# 发送UDP包到指定的地址

client.sendto(b'Hello,Python',('localhost',1024))

import socket

# 创建socket实例,type=socket.SOCK_DGRAM

server = socket.socket(type=socket.SOCK_DGRAM)

# 绑定本机地址 & 监听端口

server.bind(('localhost',1024))

# 准备接收包

while True:

# 收到数据包

client = server.recvfrom(64)

print(client[0]) # 数据包

print(client[1]) # 客户端IP & 端口

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socket-TCP(BIO) |

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import socket

# 创建socket实例.默认地址簇与协议:family=AF_INET type=SOCK_STREAM

client = socket.socket(family=AF_INET,type=SOCK_STREAM)

# 设置连接信息

client.connect(('localhost',1024))

# 发送消息到目标服务器

client.send("Hello Python".encode(encoding='utf_8', errors='strict'))

#client.sendall("Hello Python".encode(encoding='utf_8', errors='strict'))

# 读取目标服务器响应的数据

response = client.recv(99999).decode(encoding='utf_8', errors='strict')

print(response)

import socket

# 创建socket实例

server = socket.socket(family=AF_INET,type=SOCK_STREAM)

# 绑定本机地址 & 监听端口

server.bind(('localhost',1024))

# 最大连5,超过5就排队

server.listen(5)

while True:

# 新的客户端连接

client = server.accept()

# 读取客户端数据

request = client[0].recv(1024)

# 响应客户端数据

client[0].send("你好客户端".encode(encoding='utf_8', errors='strict'))

print(request)