[Python_7] Python Socket 编程

---

0. 说明

　　Python Socket 编程

---

1. TCP 协议

　　[TCP Server]

　　通过 netstat -ano 查看端口是否开启

# -*-coding:utf-8-*-

"""
    TCP 协议的 Socket 编程，Server 端
    Server 端绑定到指定地址，监听特定的端口，接受发来的连接请求
"""
import threading
import socket
import time

class CommThread(threading.Thread):
    def run(self):
        while True:
            # 接受数据
            data = sock.recv(4096)
            print("收到了%s = %s" % (str(self.addr), str(data)), )

    def __init__(self, sock, addr):
        threading.Thread.__init__(self)
        self.sock = sock
        self.addr = addr

# 创建服务器套接字，绑定端口
ss = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
ss.bind(("127.0.0.1", 8888))
ss.listen(0)

while True:
    sock, addr = ss.accept()
    CommThread(sock, addr).start()
    print("%s链接进来\r\n" % (str(addr)), )
    time.sleep(1)

　　[TCP Client]

# -*-coding:utf-8-*-
"""
    TCP 协议的 Socket 编程，Client 端
"""
import threading
import socket
import time

# 创建服务器套接字，绑定端口
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect(("127.0.0.1" , 8888))

i = 1
while True:
    str = "tom%d\r\n" % (i)
    print ("client : " + str),
    sock.send(bytes(str,'utf-8'))
    time.sleep(1)
    i += 1

---

2. UDP 协议

　　[UDP Server]

# -*-coding:utf-8-*-

"""
    UDP 协议的 Socket 编程，Server 端
"""
import socket

# 创建 UDP 接收方
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind(("192.168.13.6", 9999))

i = 1
while True:
    data = sock.recv(4096)
    print(str(data))

　　[UDP Client]

# -*-coding:utf-8-*-
"""
    UDP 协议的 Socket 编程，Client 端
"""

import socket
import time

# 创建 UDP 发送方
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind(("192.168.13.6", 8888))

i = 1
while True:
    sock.sendto(bytes(("tom" + str(i)),'utf-8'), ("192.168.13.255", 9999))
    i += 1
    time.sleep(1)

---