python单线程下实现多个socket并发

先看服务端的代码

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import sys # import socket import time import gevent from gevent import socket from gevent import monkey monkey.patch_all() #类似于python中的黑魔法，把很多模块的阻塞的变成非阻塞的，比如socket中的rece和send都变 # 为不阻塞了     def server(port):     s = socket.socket()     s.bind(("127.0.0.1",port))     s.listen(2000)     while True:         cli,add = s.accept()         gevent.spawn(handle_request,cli)         #通过gevent的启动一个协程，把客户端的socket对象传进去 def handle_request(s):     try:         while True:             data = s.recv(1024)             print("收到的信息:",str(data,encoding="utf-8"))             s.send(data)             if not data:                 s.shutdown(socket.SHUT_WR)                 #把和客户端这个链接销毁     except Exception as ex:         print(ex)     finally:         s.close()   if __name__ == '__main__':     server(8000)

　

在看客户端的代码，分别使用多线程和多进程实现

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import socket import gevent import threading import multiprocessing ''' ip_bind = ("127.0.0.1",8000) c = socket.socket() c.connect(ip_bind) while True:     data = input("客户端:")     c.send(bytes(data,encoding="utf-8"))     data = c.recv(1024)     print("服务端:",str(data,encoding="utf-8"))   c.close() ''' import socket import gevent ip_bind = ("127.0.0.1",8000) c = socket.socket() c.connect(ip_bind) def f(n):     while True:         # c.send(bytes(n,encoding="utf-8"))         data = str(n)         c.send(bytes(data,encoding="utf-8"))         data = c.recv(1024)         print("server:",str(data,encoding="utf-8"))     c.close() x = [] if __name__ == '__main__':     l = []     """     多线程实现并发客户端         for i in range(500):          t = threading.Thread(target=f,args=[str(i),])          t.start()          l.append(t)     for t in l:          t.join()       """     # 多进程实现并发客户端     for i in range(100):         p = multiprocessing.Process(target=f,args=[i,])         p.start()         l.append(p)     for p in l:         p.join()