协程实现服务器的并发

例子都是相对较基础的例子，但是能够支持的功能是实际存在的，不知道实际生产是否会用这样的方式呢

1、服务器端代码

import socket,sys
import gevent,time

from gevent import socket,monkey

monkey.patch_all()

def server(port):
    s = socket.socket()
    s.bind(('0.0.0.0',port))
    s.listen(500)
    while True:
        cli,addr = s.accept()
        gevent.spawn(handle_request,cli)

def handle_request(conn):
    try:
        while True:
            data = conn.recv(1024)
            print('recv data len',len(data))
            if not data:
                conn.send(b'no data')
                continue;
            conn.send(data)
    except Exception as e:
        print(e)

    finally:
        conn.close()

if __name__ == '__main__':
    server(8001)

2、客户端代码

import os,time,socket

PORT = 8001
HOST = 'localhost'
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect((HOST,PORT))

while True:
    msg = bytes(input(">>"),encoding ="utf-8")
    s.sendall(msg)
    data = s.recv(1024)
    print('recv from server',data)

s.close()