网络编程

用socket进行ip之间的收发数据

>仅仅接收

import socket
# 创建socket对象
server = socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM)
# 准备接受的地址IP和端口
server.bind(("192.168.11.130", 8888))
while True:
    (msg, address) = server.recvfrom(1024)
    # 两个返回值 1：消息 2：发送端IP
    print(msg.decode("utf-8"))
# 关闭资源
server.close()

>仅仅发送

import socket

udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
# 准备发送到的地址
address = ("192.168.11.130", 8888)
while True:
    msg = input(">>").encode("utf-8")
    udp.sendto(msg, address)
udp.close()

>发送一次接受一次

import socket
charset = "utf-8"
udp = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
udp.bind(("", 8888))

try:
    while True:
        msg = input("请发送数据：》》")
        udp.sendto(msg.encode(charset),("192.168.11.132", 8888))
        (recive, addre) = udp.recvfrom(1024)
        print("接受到：%s 来自：%s" % (recive.decode(charset), addre))
finally:
    udp.close()

>接受一次发送一次

import socket
charset = "utf-8"
udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
udp.bind(("", 8888))

try:
    print("正在等待消息。。。。。")
    while True:
        (recive, addre) = udp.recvfrom(1024)
        # print(udp.recvfrom(1024))
        # print(recive.decode(charset))
        # print(addre)
        print("接受到：%s 来自：%s" % (recive.decode(charset), addre))
        msg = input("请发数据：》》")
        if msg == "quit":
            break
        udp.sendto(msg.encode(charset),("192.168.11.132", 8888))
finally:
    udp.close()