1. 客户端和服务器聊天，可以一直聊天，直到一方发送’拜拜’。然后就可以和下一个人一直聊

import socket
def creat_server():
    server = socket.socket(family=socket.AF_INET,type=socket.SOCK_STREAM)
    server.bind(("10.7.153.200",8080))
    server.listen(512)
    while True:
        print('监听状态')
        connect,addr = server.accept()
        print(addr)
        while True:
            message = input('服务器：')
            connect.send(message.encode())
            recv_data = connect.recv(1024)
            print(recv_data.decode())
        if message == '拜拜':
            connect.close()
if __name__ == '__main__':
    creat_server()
创建客户端
import socket
def creat_client():
    #1.创建套接字对象
    client = socket.socket()
    #2.连接服务器
    """
    connect(服务器地址)
    """
    client.connect(("[图片上传失败...(image-af22c3-1536755670067)]

10.7.153.200",8080))
    while True:
    #3.接收服务器发送的消息
        data = client.recv(1024)
        print(data.decode(encoding='utf-8'))
    #4.给服务器发送消息
        message = input('客户端')
        client.send(message.encode())
        #5.断开连接
    client.close()
if __name__ == '__main__':
    creat_client()

2. 下载网络图片（[图片上传失败...(image-689f0c-1536755571066)]

https://ss1.bdstatic.com/70cFuXSh_Q1YnxGkpoWK1HF6hhy/it/u=2808438283,4249462766&fm=26&gp=0.jpg）到本地

import requests
ur1 = 'https://ss1.bdstatic.com/70cFuXSh_Q1YnxGkpoWK1HF6hhy/it/u=2808438283,4249462766&fm=26&gp=0.jpg'
response = requests.get(ur1)
with open('./files/new2.jpg', 'wb') as f:
    f.write(response.content)