#block_server.py 非阻塞IO示例#有个疑惑:下面的connfd的blockind要设置为True,不然会出错,待解决from socket import *from time import ctime,sleeps = socket()s.bind(("0.0.0.0",18888))s.listen(10)#设置s为非阻塞状态s.setblocking(False)while True: print("等待连接...") try: connfd,addr = s.accept() except BlockingIOError: sleep(2) print(ctime()) continue print("connect from",addr) while True: connfd.setblocking(True) data = connfd.recv(1024) if not data: break print(data.decode()) serv_msg = input("服务端消息>") connfd.send(serv_msg.encode()) connfd.close()s.close()=========================================#timeout_server.py 超时检测示例及tracebackfrom socket import *from time import sleep,ctimeimport tracebackHOST = "0.0.0.0"PORT = 14444s = socket()s.bind((HOST,PORT))s.listen(5)#设置超时检测s.settimeout(5)while True: print("服务端等待连接.....") try: c,addr = s.accept() except Exception: traceback.print_exc() continue print("connect from",addr) while True: data = c.recv(1024) if not data: break print(data.decode()) serv_msg = input("服务端消息>") c.send(serv_msg.encode()) c.close()s.close()==========================================#select_server.py select服务端示例from socket import *from select import *HOST = "0.0.0.0"PORT = 18888s = socket()s.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)s.bind((HOST,PORT))s.listen(5)#将需要监控的IO放入rlistrlist = [s]wlist = []xlist = []print("select服务器启动成功")while True: print(f"select正在监控阻塞套接字{rlist}") print(f"目前列表中有{len(rlist)}个套接字") rl,wl,xl = select(rlist,wlist,xlist) for r in rl: #套接字准备就绪 if r is s: conn,addr = r.accept() print("Connect from",addr) #把新的套接字加入监控列表 rlist.append(conn) else: data = r.recv(1024) if not data: rlist.remove(r) r.close() break print("received:",data.decode()) r.send("已经收到".encode()) for w in wl: pass for x in xl: pass===============================================#select_server2_wlist.py select服务端示例,演示wlist,xlist用法from socket import *from select import *import sysHOST = "0.0.0.0"PORT = 18888s = socket()s.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)s.bind((HOST,PORT))s.listen(5)#将需要监控的IO放入rlistrlist = [s]wlist = []xlist = [s]print("select服务器启动成功")while True: print(f"select正在监控阻塞套接字{rlist}") print(f"目前列表中有{len(rlist)}个套接字") rl,wl,xl = select(rlist,wlist,xlist) for r in rl: #套接字准备就绪 if r is s: conn,addr = r.accept() print("Connect from",addr) #把新的套接字加入监控列表 rlist.append(conn) else: data = r.recv(1024) if not data: rlist.remove(r) r.close() break else: print(f"received from {str(r.getpeername())}:{data.decode()}",) #接收完消息,把套接字加入wlist列表,待处理(当wlist内有内容,select会立即返回) wlist.append(r) # 当上一步待处理套接字加入wlist,这步立刻处理,处理完把该套接字移出wlist for w in wl: w.send(f"已经收到你的消息{str(w.getpeername())}".encode()) wlist.remove(w) for x in xl: #如果套接字出错,结束整个程序 if x is s: s.close() sys.exit() ============================================================= #unix_send.py 本地套接字简单应用,发送端 from socket import * import sys,os #确定用哪个文件进行通信 server_address = "./test" #判断文件是否存在,如已存在则删除 if os.path.exists(server_address): os.unlink(server_address) #创建本地套接字 s = socket(AF_UNIX,SOCK_STREAM) #绑定本地套接字文件 s.bind(server_address) #监听 s.listen(5) #收发消息 while True: c,addr = s.accept() while True: data = c.recv(1024) if data: print(data.decode()) c.sendall("收到消息".encode()) else: break c.close() s.close() ======================================================== #unix_recv.py 本地套接字简单应用,接收端 from socket import * server_address = "./test" s = socket(AF_UNIX,SOCK_STREAM) s.connect(server_address) while True: message = input("客户端消息") if message: s.sendall(message.encode()) recv_msg = s.recv(1024) print(recv_msg.decode()) else: break s.close()
来源：https://www.cnblogs.com/huohu121/p/12319821.html