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

创建服务器：

import socket

def creat_server():
    """写一个服务器"""
    server = socket.socket()   # 创建套接字对象
    server.bind(('10.7.153.167', 8000))   # 绑定IP地址和端口
    server.listen(520)        # 开始监听

    while True:
        connect, addr = server.accept()

        while True:
            message = input('服务器：')
            connect.send(message.encode())

            recv_data = connect.recv(1024)

        connect.close()

creat_server()

创建客户端：

import socket

def creat_client():
    client = socket.socket()

    client.connect(('10.7.153.167', 8000))

    while True:
        data = client.recv(1024)

        message = input('客户端：')
        client.send(message.encode())

        if message == '拜拜':

            break


    client.close()

creat_client()

2. 下载网络图片（https://ss1.bdstatic.com/70cFuXSh_Q1YnxGkpoWK1HF6hhy/it/u=2808438283,4249462766&fm=26&gp=0.jpg）到本地

import requests

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

response = requests.post(url)
print(response.content)

data = response.content

with open('./tupian/2.png', 'wb') as f:
    f.write(data)