协程

一、协程简介

　　　　协程就是在单线程下实现并发，通过代码的方式来欺骗CPU跳过IO操作，尽可能的使CPU持续被占用。

 

 

 

二、在python通过代码实现协程

# 协程简单实现TCP服务端并发的效果
import socket
from gevent import monkey;monkey.patch_all()
from gevent import spawn
def talk(sock):
    while True:
        try:
            data = sock.recv(1024)
            if len(data) == 0:break
            print(data)
            sock.send(data+b'hello baby!')
        except ConnectionResetError as e:
            print(e)
            sock.close()
            break
def servers():
    server = socket.socket()
    server.bind(('127.0.0.1',8080))
    server.listen()
    while True:
        sock, addr = server.accept()
        spawn(talk,sock)
g1 = spawn(servers)
g1.join()